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After much troubleshooting, I have determined that my crashes are caused not by my X-Fi sound card, but by my eVGA 8800 GTX. I can assure you that the card has no overheating issues or hardware failures. It stays fairly cool, a nice 79 C on load (which is pretty good for a GPU). I can play all other 15 games I have loaded onto my hard drive with no issue.
However, as much as anyone else with the same card can tell you, nVidia has been driving their reputation off a cliff "Thelma & Louise"-style with their drivers. Warhammer Online, being a new game not-yet-on-shelves, is lacking subsequent support from nVidia. EA Mythic does not post a recommended driver version on their website, and the problem seems to persist across all nVidia drivers, BETA and WHQL.
The problem itself is a graphical crash - the screen freezes with some colorful corruption. Despite this fact, the card does not entirely crash the computer. I can still communicate over vent and even attempt to CTRL-ALT-DEL out to kill the .exe. This was an issue I observed in Battlefield 2 years back that was later fixed by a released driver.
My latest attempt has been version 177.92, a beta driver. I cannot run 175.19 because City of Heroes will then not launch appropriately. 175.16 was solid, except that Hellgate: London would crash on those. Much to my frustration, there never seems to be a driver that will allow me to play a consistent number of games without issue. I just want a version that will not suck for all my games. I don't want to load up a certain driver in order to play a certain game.
For anyone who has gone through this experience with Warhammer Online, has there been any conclusion - is there a driver that has fixed problems regarding graphical crashes, freezes, or lockups for you?
Thanks in advance for the help.