Hi Eonfire

I am not aware of any virus that actually "infects" the BIOS.............MBR (master boot record, yes, BIOS no)..............I do know viruses that will trash your BIOS..............you know about them because you cannot boot it

Your AV will scan the MBR but you may have to enable the feature in its set-up.

If you are not sure, just create a folder called "maintenance" and move stuff into it, then wait a week before deleting....................at least you will know where to find it if everything goes "pear shaped"

now is a good time to install a more stable OS.. winME bites..
I don't exactly agree.............Win Me either dies of starvation or gluttony

I have:

PII/266/128Mb..........................Unstable (memory starvation)
PII/333/384Mb..........................Stable
PII/450/384Mb..........................Stable
P4/1.7/768Mb............................Unstable (memory gluttony)
Duron/1.3/512Mb.......................VERY Stable...takes a power cut to kill it !

What are your specs (processor/RAM)? an OS upgrade may not be possible, as XP is quite demanding...................

Good luck