Px Engine help?!

[cactus]

HI, Gents! I just ran a virus scan on my computer last week and now RecordNow Max give me a read error as soon as I start to read a DVD or CD. It says "PxEngine Error (then some numbers) cannot read disc." I've tried downloading PxEngine from Veritas and still no luck. Even uninstalling and installing isn't helping. DVDxCopy works fine though. I have a Pioneer 1A04 with 1.40v firmware. Any suggestions? Thanks!