what the heck is this? before you tell me to get a legal copy of the game, I already do own one. And no, I will not bring out my manual and tell you what page 17 says. ;)
Anyway, what's the problem? Siege used to work, but it's been like this for weeks.
You must have installed some kind of mod or map that cause this problem, what else could it be?
Does it happen on every siege server? Try a lot of different ones.
I have an endless archive of maps and mods, so never mind... I'll just reinstall it some day. Thanks anyway.
EDIT: Thanks Kurgan ;)
No need for that, just remove all the pk3's from your /base folder except those that begin "assets..".
Start it up and problem should be solved.