I'm not sure why but phpGD leaves behind a .tmp file when coding to a .gif file? It only does this with .gif but not .jpg or .png. I would like to use .gif because it is good quality and file size but I'm sick of clearing out .tmp files from the root of my hard drive.
Has anyone got any ideas of how to stop this? Thanks in advance.
The code I use is:

<?php
/////////////////////////////////////////////////////////
//////////////Abyss web server sig script////////////////
//Contact webmaster@abyssunderground.co.uk for support///
/////////////////////////////////////////////////////////

ini_set("display_errors", 0);

$im = imagecreatefromjpeg("bg.jpg"); // Input Image

$pagefile = "C:\pagefile.sys"; // Your pagefile (for the uptime function)
$multiprocessor = "true"; // Set to true if you have more than one processor/Hyperthreading

$type="wmi"; //Select the type of cpuusage extraction you want to use. (txt for cpuusage.exe or wmi for WMI method)

////////////////////
header("Content-type: image/png");
$uptime = (time() - filemtime($pagefile));
$updays = floor($uptime / (24*3600));
$uptime = $uptime - ($updays * (24*3600));
$uphours = floor($uptime / (3600));
$uptime = $uptime - ($uphours * (3600));
$upminutes = floor($uptime /(60));
$uptime = $uptime - ($upminutes * 60);
$upsecs = $uptime;
$memprog = explode("\n", `memory.exe`);

$totmem = round($memprog[2] /1048576);
$usedmem = round($memprog[3] /1048576);
$freemem = $totmem - $usedmem;

$SLOT0total = round(disk_total_space("h:") /  (1048576),2);
$SLOT0free = round(diskfreespace("h:") /  (1048576),2);
$SLOT0used = $SLOT0total - $SLOT0free;

$line = explode("\n", `netstat -e`);
$line = explode(" ",$line[4]);
$cnt = 0;
for ($i=0;$i<count($line);$i++) {
if ($line[$i]=="") continue;
if ($cnt==0) $text = ucfirst($line[$i]);
elseif ($cnt==1) $rec = $line[$i];
elseif ($cnt==2) $sent = $line[$i];             
$cnt++;
}
$totalrec = round($rec /  (1048576),2);
$totalsend = round($sent  /  (1048576),2);
// Add more here if needed//
$freehd = $drive1free + $drive2free; 
$tothd = $drive1total + $drive2total;
$winver = `ver`;
$usrip = $_SERVER['REMOTE_ADDR'];
$usrhost = gethostbyaddr($_SERVER['REMOTE_ADDR']);
$date_time = date("l dS of F Y, h:i:s A");

$message2="% CPU load";
$server="";

if($type=="txt"){
$dataFile = "c:\cpu.txt";
$fp = fopen($dataFile, "r");

$buffer = fscanf($fp, "%s", $message);
           $cpuDATA=$message;
}

if($type=="wmi"){

if(class_exists("COM")) {
  $wmi = new COM("WinMgmts:\\\\.");
  $cpus = $wmi->InstancesOf("Win32_Processor");

$i = 1;

// Use the while loop on PHP 4 and foreach on PHP 5
  while ($cpu = $cpus->Next()) {
     //foreach ($cpus as $cpu) {

$clockSpeed = $cpu->CurrentClockSpeed;
   $cpuDATA = $cpu->LoadPercentage;
   $i++;

}
} 
}

if($cpuDATA>"100") // compensates for cpuusage.exe displaying
$cpuDATA="100";  // 100.5% on a 100% load

//determines the cpu usage message
if($cpuDATA == "0"){
$server="Idle";
}

if($cpuDATA > "0"){
$server="Idle";
}

if($cpuDATA > "10"){
$server="Low use";
}

if($cpuDATA > "30"){
$server="Moderate use";
}

if($cpuDATA > "60"){
$server="High use";
}

if($cpuDATA > "90"){
$server="High stress or under maintainance";
}

if($cpuDATA=="") {
$cpuDATA="??";  
$server="Unknown. Check WMI or CPUUsage.exe";
}

//reads and writes to the counter file
$fp = fopen("counter.txt", "r");
$count = fread($fp, 1024);
fclose($fp);
$count = $count + 1;
$fp = fopen("counter.txt", "w");
fwrite($fp, $count);
fclose($fp);

//determines the random message
$ran = rand(1,1);

// max letters should not exceed here ---------------------------->|
if($ran=="1"){
$random="This image was created by phpGD. Go to www.php.net for";
$random2="more information about how to use phpGD and phpGD2.";
}

$dynmsg  = "Server Date/Time: ".$date_time."\n";
$dynmsg .= "Server Uptime: ".$updays." days, ".$uphours." hours, ".$upminutes." mins, ".$upsecs." secs\n";
$dynmsg .= "Server Memory: ".$totmem."mb -> Used: ".$freemem."mb, Free: ".$usedmem."mb\n";

$dynmsgcpu .= "Server CPU Usage: ".$cpuDATA."%, (".$server.")\n";

$dynmsg2  = "Network Transfer: -> Sent: ".$totalsend."mb, Received: ".$totalrec."mb\n";
$dynmsg2 .= "Your IP: ".$usrip.", Your DNS: ".$usrhost."\n";

$dynmsgline  = "-------------------------------------------------------------------------------------------------------------";

$dynmsg4 = $random."\n";
$dynmsg42 = $random2."\n";
$dynmsg5 = "Sig Hits: ".$count."     Sig started 31st July 2005";

////////////////////

$txtcolor = imagecolorallocate($im, 0, 0, 0); // Text Color
imagettftext($im, 8, 0, 214, 14, $txtcolor, "../fonts/tahoma.ttf", $dynmsg); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 255, 255, 255); // Text Color
imagettftext($im, 8, 0, 215, 15, $txtcolor, "../fonts/tahoma.ttf", $dynmsg); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 0, 0, 0); // Text Color
imagettftext($im, 8, 0, 214, 58, $txtcolor, "../fonts/tahoma.ttf", $dynmsgcpu); //txt-size,slant,left,top

//determines the cpuusage color
if($cpuDATA == "0"){
$txtcolor = imagecolorallocate($im, 0, 255, 255);
}

if($cpuDATA > "0"){
$txtcolor = imagecolorallocate($im, 0, 255, 255);
}

if($cpuDATA > "10"){
$txtcolor = imagecolorallocate($im, 0, 255, 0);
}

if($cpuDATA > "30"){
$txtcolor = imagecolorallocate($im, 255, 255, 0);
}

if($cpuDATA > "60"){
$txtcolor = imagecolorallocate($im, 255, 155, 0);
}

if($cpuDATA > "90"){
$txtcolor = imagecolorallocate($im, 230, 45, 45);
}

imagettftext($im, 8, 0, 215, 59, $txtcolor, "../fonts/tahoma.ttf", $dynmsgcpu); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 0, 0, 0); // Text Color
imagettftext($im, 8, 0, 214, 72, $txtcolor, "../fonts/tahoma.ttf", $dynmsg2); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 255, 255, 255); // Text Color
imagettftext($im, 8, 0, 215, 73, $txtcolor, "../fonts/tahoma.ttf", $dynmsg2); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 0, 0, 0); // Text Color
imagettftext($im, 8, 0, 214, 96, $txtcolor, "../fonts/tahoma.ttf", $dynmsgline); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 204, 204, 204); // Text Color
imagettftext($im, 8, 0, 215, 97, $txtcolor, "../fonts/tahoma.ttf", $dynmsgline); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 0, 0, 0);
imagettftext($im, 9, 0, 214, 108, $txtcolor, "../fonts/tahoma.ttf", $dynmsg4); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 204, 204, 1);
imagettftext($im, 9, 0, 215, 109, $txtcolor, "../fonts/tahoma.ttf", $dynmsg4); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 0, 0, 0);
imagettftext($im, 9, 0, 215, 122, $txtcolor, "../fonts/tahoma.ttf", $dynmsg42); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 204, 204, 1);
imagettftext($im, 9, 0, 215, 123, $txtcolor, "../fonts/tahoma.ttf", $dynmsg42); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 0, 0, 0); // Text Color
imagettftext($im, 9, 0, 214, 141, $txtcolor, "../fonts/tahoma.ttf", $dynmsg5); //txt-size,slant,left,top

$txtcolor = imagecolorallocate($im, 255, 128, 0); // Text Color
imagettftext($im, 9, 0, 215, 142, $txtcolor, "../fonts/tahoma.ttf", $dynmsg5); //txt-size,slant,left,top

imageinterlace($im,1);
imagegif($im,"",85);
imagedestroy($im);

?>