Need help.
My KOTOR works fine in the start-up and the menu. But when I play for more than five minutes the game freezes, and if I click anywhere the game will crash.

I have tried countless fixes:
I have installed it using the Windows Xp Compatibility  mode setup,
Ran as Administrator,
Disabled the "read-only" property in the root file,
I made a shortcut of swkotor.exe and ran it in compatibility mode for XP,
I updated my DirectX, 
I set the CPU affinity to only one CPU,
I even downloaded and replaced the previous mss32.dll root file with the new, "fixed" one, even though I have the "Best of PC" version.

What can I do??

Here are my system properties:

Processor: Intel(R) Core(TM) i7 CPU    950 @ 3.07GHz 3.07 GHz
Memory (RAM): 6.00 GB
System Type: 64-bit Operating System
Graphics Card: GeForce GTX 260

Help please.