Okay, So I have played ddo in the past and am starting up again on the same cpu. I have switched graphics cards since then because the other one died, but I've played games like dragonica and LOL on it without any difficulties, which leads me to believe that its some random software issue.
The issue is simple and annoying. When loading for something or recalling, the game has a tendancy to tab-out (Without me telling it to), the screen goes black, and it trys to tab in, goes to black screen, tabs out. These tab in/tab outs occur over 1 second each, and the only way to stop it is to ctrl/alt/delete, tell it to log off, then as the force log off screen comes and closes the program, tell it to abort. This happens anywhere from 1 hour of playing to 10 mineuts of playing, but having to restart every time makes me just not want to play. Does anyone know what could be causing this and/or ways to diagnose and fix the problem?