ok...heres the background... P4 @ 2.8 ghz, 256 mb, 120 gb hdd, Lite-on 1633s 16x dual layer DVD +- R RW, winxp home and NOT MY BOX.

Here's the problem...using Nero 6 ultra the computer has been able to burn a full length DVD from an image file in about 14 minutes. Now the same process takes 45 - 50 minutes on a GOOD day. I've run spybot S&D, the cleaner, anti-virus...reinstalled nero...everything looks clean but this box runs as fast as a jar of molasses @ -30 degrees. There's nothing out of the ordinary in the processes window either. Any suggestions out there?