It a multi-thread/memory leak issue. Which means that some developer forgot to close threads and garbage collect. I seen this going on because my m1730 has an on-board hardware based monitoring system and saw my ram and cpu get eaten up in certain locations. I overclocked my x9000 to 3.4 ghz and it cleared up enough for my GPU to run smoother but every so often the game tends to leave my cpu running unclaimed processes which will crash any box eventually.