no_spam@no_where.invalid wrote:

check

http://www.microsoft.com/security/incident/blast.asp


http://www.europe.f-secure.com/v-descs/msblast.shtml

although the removal tool link is incorrect ... it should be

ftp://ftp.f-secure.com/anti-virus/tools/F-Lovsan.zip

also

right click on My Computer icom
select properties

the system properties box will now come up

goto advanced

startup and ... button

untick the automatically reboot box .... at least if it crashes
again you will see the crash blue screen which contains details
of what contributed to the crash

also

check the fans and the PSU in the machine are working properly


--
Steve Parry BA (Hons) MCP MVP

http://www.gwynfryn.co.uk