sound card: ess1868
It was nothing more than trial and error.
I searched the MS knowledgebase and found out that it is a problem with XP Pro, Home and 64bit. They suggested that I start ripping my comp out and start testing each adapter etc etc...
I tested my sis6326 8mb, my memory, my data cables etc etc...everything but my sound card on 2 of my frinds machines.
They ran perfectly. Never thought that a sound card can cause so much havoc. Then I went and borrowed a second hand 440BX from a local dealer to test it. I was sure by this time that it was my motherboard which was screwing up and I was looking to replcae it with this test board. When this test board started heating up unusually, I took it off and put my board in. Since my friend wanted something from my hdd quick, we connected without the soundcard and for 3 restarts it worked just fine. Then I put it in and VOILA...bule screen. Now I'm running it for over 36 hours and over 30 restarts without my ess and it's running just fine.
How i solved it:
I'm using my friends yamaha card
Kicks butt compared to my ess.
Mayuresh