I installed this using Steam, but when i attempt to launch it, the game launches to a black screen, but then closes on its own...i have enclosed my projectx log:
2011/09/20 17:55:10:552 INFO I$a.a: Logging to 'c:\program files (x86)\steam\steamapps\common\spiral knights\.\projectx.log'.
2011/09/20 17:55:23:448 INFO I$a.a: Steam initialized.
Exception in thread "AWT-EventQueue-0" org.lwjgl.opengl.OpenGLException: Invalid value (1281)
at org.lwjgl.opengl.Util.checkGLError(Util.java:59)
at org.lwjgl.opengl.WindowsContextImplementation.setSwapInterval(WindowsContextImplementation.java:113)
at org.lwjgl.opengl.Context.setSwapInterval(Context.java:231)
at org.lwjgl.opengl.Display.setSwapInterval(Display.java:993)
at org.lwjgl.opengl.Display.setVSyncEnabled(Display.java:1005)
at com.threerings.projectx.client.ui.E.wasAdded(SourceFile:47)
at com.threerings.projectx.client.ProjectXApp.a(SourceFile:546)
at com.threerings.projectx.client.ProjectXApp.c(SourceFile:534)
at com.threerings.projectx.client.ProjectXApp.uw(SourceFile:1432)
at com.threerings.projectx.client.ProjectXApp.didInit(SourceFile:1108)
at com.threerings.opengl.e.init(SourceFile:370)
at com.threerings.opengl.n.init(SourceFile:193)
at com.threerings.projectx.client.ProjectXApp.init(SourceFile:1060)
at com.threerings.opengl.o.run(SourceFile:171)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:641)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:602)
at java.awt.EventQueue$1.run(EventQueue.java:600)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:611)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
I am running Windows 7 64-bit, everything up to date
It looks like your game is suffering a problem with OpenGL, what is your graphics card (plus driver version) and have you tired these steps?