FINAL UPDATE!
So I finally managed to track down what was causing my video card problem. Turns out, the games/apps I was running had to be played/viewed in FULL SCREEN. The games I was testing and the Trixx application were being played in a 800x600 window (my resolution is 1024x768). I...
Just an update -
No solution has been found yet. I've tried almost all the suggestions posted, and learned that my power supply is a 500. I've also tried the Omega drivers instead, still with no luck.
Currently, I'm sending the card back to the shop for testing in hopes of finally...
I took out the card and put it back in, left the case open while playing the game (it's quite cool in the room), made sure there was little to no dust present in the case, and wires looked fine. I loaded up Hitman and the same problems persisted. Only difference I noticed was the loud noise...
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Mobo: MSI RS482M4
Processor: AMD K8 Athlon64 3200+ (2GHz)
RAM: DDR 400 (1x512MB, 1x1024MB)
Power Supply: Best Power (somewhere between 400-500)
Hard Drives: 1-Western Digital SATA 250MB, 2-Seagate PATA...