Ok, so this is probably already been addressed in other places, but these forums are a little hard to navigate given topics are somewhat misleading.

Anyway, this has been going on for a while now, maybe a month. Spiral Knights has an odd habit of making my GFX Card/graphics processor crashing without warning, then I won't be able to start up the client without my screen going into a laser lightshow. And when it doesn't do that, the window will open, the login music will play, but no visuals will show up, then I can't close the window until I end the task in the task manager.

http://mediacloud.whirled.com/e4f43f8dcee23ae06169d94c16f84b176e0df0a2.png Here is hard evidence of when it crashes, as well as the warning bubble that shows up every time it does. That happened when joining a friends party for FSC.

Some lovely specs so we know what's been runnin':
Intel i7 Core
8GB RAM, with plenty to use up.
64-bit OS, running Windows 8.

That's really all there is to say on the matter. Well actually, I might also say that I'm running the actual game with low-end graphical performance, though that makes no difference when I go high-end. The game will also start up if I restart my system.