well, I upgraded to windows 7 and haven't had this issue! post your computer specs maybe you all have something in common?
Asus ul50a laptop:
os: win7 premium
cpu: ulv su7300
It freezes very unexpectedly, like when Youtube is playing, and I'm working in other windows. It doesn't look like it is caused by high load.
I used to get the same problem as well. I reinstalled the OS using another CD and then i noticed it stopped giving me problems. Weird, but i think while installing the OS, some file might have got corrupted, thats the most common problem.
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