Operation of AV-CLS

I have just noticed some problem with the operation of Multi-AV

My computer has started exhibiting erratic behaviour. It is extraordinarily
slow and keeps downloading the stupid MS Genuine Validation Tool very
slowly, running it very slowly and all to no particular effect,

Programs close at will, - especially Outlook which runs a PST scan when it
opens even if it was closed properly just a minute before! It also doesn't
check its servers very often and doesn't download email as often as it
should.

It all looks suspiciously like some virus or trojan. (I run AVG which
updates every morning).

So I try Multi-AV and IT runs relatively slowly. But even worse, when it
does run, it gives 16 bit DOS subsystem error messages that some device
driver has failed initialisation on some .dll file. The av then stops while
I get an arcane question asking me if I want to run the av or ignore the
error. If I do, it runs but Kaspersky doesn't give me a log. The log it
does give stops in mid-flow (after about a hundred lines). Sophos gives this
same error message but doesn't run at all. Trend ran a few days ago but
found nothing. Now it stops after the error message.

Has any recent Microsoft patch compromised anti-virus protection or is it
time to go over to Tiger? Does anyone know if I will get all these problems
if I try to run XP within Tiger as every Mac techie is now advocating?


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