For some reason, my game is now set to run windowed. If i try to change it back to full screen, the game vanishes from my desktop and taskbar but remains running.
Every time this happens i need to go terminate javaw.exe, and it starts windowed again next time I launch it.
XP Professional Service Pack 3
Pentium 4
1GB RAM
RESTARTED STEAM
RESTARTED PC
VERIFIED
REINSTALLED
CALLED THE COPS
SUMMONED BEELZEBUB
Still happens.
Use Section 5 from here to navigate to the registry settings for Spiral Knights and set the fullscreen value to true.