Crashing-Help

I'm having a problem playing files once they are in a PT session. I have no problem importing files, exporting files and converting files but when I put them in the timeline and hit play the whole computer either freezes, a fatal exception pops up or the computer totally restarts. My system is as follows: Micron PIII - 650mHz (Intel) Windows 98 SE 256 megs RAM Yamaha DS-XG sound card I'm really familiar with Pro-Tools on the Mac platform but the PC platform, well that's a different story. Thanks for your help!

I can help you if you tell me what motherboard/chipset combination you have. Sincerly, Alex Tsirogiannis President/Owner Dreamware Systems Canada 604-605-9776

Okay, here it goes Micron Model SE440BX2 Motherboard - MBD001109-xx Intel Pentium III chipset

Ok, I thought I had this fixed but it appears I don't. I deleted the DAE preferences and launched and it work perfectly. I could play, edit, etc. for a couple of days. Then started a new session today, and it crashed on import. Rebooted, deleted prefs, launched, imported files and when I tried to play one, poof... back to the original problem. Is anyone else experiencing this? My system specs are above. Thanks Holly