Hi I am new here and this is my 1st post so please bare with me.
This is my problem.
PC.... Pentium 4 x 3Ghz, Mobo Gigabyte Ga-8ik1100,2 Gig DDR400 RAM, Audigy2 Sound Card, GeForce FX 5900 Ultra 256MB, Samsung DVD reader, Panasonic DVD writer, 120 Gig Seagate HDD SATA.
It started whilst playing Quake III Arena, without any warning everything comes to a hault. Screen is frozen, no mouse, no keyboard and sometimes it sounds asif a wave file is looping (like a stuck record).
I thought this maybe an easy fix but no. It does not just happen in gaming online or offline, I can just be rearranging my desktop and then nothing all frozen with no option except a manual reboot.

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There is nothing in the event viewer and this system is less than 3 months old. The mouse is intellimouse explorer with internert KB Pro both usb. OS is Windows XP Pro With every update and service pack installed to date.
Mobo bios updated to F9 (latest) . All video, sound etc drivers are current.
It happens more regularly now and I know this just cant be good for the HDD or the system. The pc cant be left unattended while on.

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Any help u may give will be greatly appreciated.