pc reboots upon connection to the internet

[corosus]

hi

i just had a verry wierd phone-call from a friend of mine
first off this is what i know by heart of her setup
some siemens pc (if i remeber correctly a p3 800 mhz but i might be wrong)
running windows 2000
AV = norton 2003 (virus definitions are up to date)
browser = ie (6) if i rember correctly
she is connected to the net with a usb adsl modem (thompson)


she told me that her internet connection had been slow for the last couple of months and that a maintenance technician from the phone company (might have been the ISP) had replaced a couple of cables and that that had fixed it
but ever since then they had been getting an insane amount of anti-virus
"and other" warnings (i can only assume the "other warnings" are spyware warnings)

whenever she tries to connect to the internet the process of dialing in is ok, but whenever she opens IE the entire pc simply reboots

i would advise housecall but without a valid inet connection....


does annyone have anny idea of what might be the cause of this and how i might fix this (other than reinstall i did that last time took me 6 hours to get the whole thing back to how she liked it)


thanks

[glc]

Bring antivirus and antispyware apps over on a USB flash drive or burned to a CD.

[corosus]

yhea i was planning to do that
i currently have AVG on a usb drive together with adaware and spybot i also have regclean and firefox installer with me (in case it's a IE problem)

anny idea what migt be the caue of her problem??

[corosus]

ok, i,m there now
there are ideed a lot of antivirus warnings (some automatic script keeps trying to unzip a number of trojans. there are also a number of exe's on the drive that i can find NO info on, but that NAV keeps insitingare not virii.
when i tried to open housecall to confirm this the pc rebooted. Not long after rebooting back to windows and opening a new connection to the net i got a bluescreen concerning Alcan5wn.sys after googleing iti foiud out this is the driver for the modem

does annyone have anny clue what the cause of this problem might be????

thanks