I installed a fresh copy of Spring 0.74b3. Straight from the installation, I ran Spring Test, I go to GlobalAI test (AAI.dll), Mars, and XTA. From there, I went to my Commander, and started constructing a building.
Shortly after, while scrolling around, my *entire* computer will freeze, including Windows. Computers that connect to the internet through this one on my network will instantly lose connection, and not even the caps lock key functions anymore. The only way to recover my computer is to hard reset it.
This will occur no matter what I try. Whether its an online game, or one of the various test scripts, it will eventually freeze. Sometimes I can go for several minutes, sometimes I can't even start construction on the first building. However, it has happened on every game I try.