Morrowind technical problem??!!!

[Recreate the Virus]

Okay, I bought Morrowind a while back...Just the basic game, no expansions or anything...But, when I play it, my computer always randomly shuts off. Sometimes it's after 5 minutes of playing, sometimes it's after 2 hours...It's just random.

Does anyone know the problem.

This also happened one time when I was playing King's Quest 7 and once on Dungeon Keeper 2...But it's more frequent on Morrowind and it never happened before Morrowind.