please help cpu will not restart

[rowdy31]

h-p pavillion
windows 98 second edition
push power button screen flashes blue then goes black for about sevin seconds then one more blue flash then nothing
i used to be able to hit alt cont delete on the second flash then cpu would
start and run fine but not now
tried (f8) (esc) ( alt- cont- delete) nothing same thing
its been doing this for a while just wondering if i got a virus or if im just scre-- any help?????

[caperjack]

Run this online virus scan ,make sure you check off auto fix .
http://housecall.trendmicro.com/housecall/start_corp.asp

..............................................................
And after that, please do the following:

Download 'Hijack This!'. HERE
Download link is on the left

Unzip (extract) it to a folder of its own.Like c:\HJT\hijackthis.exe , Then Doubleclick HijackThis.exe (in the new folder), and hit "Scan".
When the scan is finished, the "Scan" button will change into a "Save Log" button.
Press that, then Ctrl-A to Select All, and copy its contents here. for hijackthis,most of what it lists will be harmless or even essential, don't fix anything yet.

reboot computer and post a new hijackthis log