The game was working fine prior to downloading yesterday's patch. Now, when I try to start either from the downloaded version or the web version, the game window will come up for about 5 seconds, then close before displaying anything more than a black screen. I have been through the steps suggested in the sticky; I updated Java, I updated my graphics drivers, uninstalled then reinstalled the game, and checked my firewall settings. Still does the same thing. I have found an error file in the Spiral Knights game folder that I'll paste below.
System Info:
Windows XP
AMD Athlon X2 5600+