I've played for about a month, never had a single problem..

Since yesterday, i cant play anymore because of that weird bug.
I login just fine and play dungeons alone just fine.

I solo some dungeons and everything works..
Then i decide to join a group and play a dungeon with them and everything is perfect.
But when the quest is done, no matter which quest, after exiting the dungeon, i click on the NPC that gives me my reward and the usual window appear with the correct text lines, but nothing seems to work anymore. I cant click on anything and when i try it does nothing. I cant press ESC, i cant leave the group, i cant enter a dungeon...
It's actually easier to say what i can do, like running around and chatting with people, right clicking and casting spells, at least those allowed in town.

Heck i cant even quit the game, i have to ctrl+alt+delete out of the game...
There is nothing on my computer that could do that, nothing beside turbine and my anti-virus is running.

I tryed reinstalling.. i uninstalled and removed both D&D and Turbine and redownloaded that whole 5.8GB and reinstalled, but it still does that.

Please help im completly clueless =\