I recently set up my ubuntu server using ubuntu 12.04 with desktop. It has been working great now for a week, and suddenly now I came across a problem i can't seem to solve.

I use Windows remote desktop to connect to the server(vnc-any). This worked for a week, but now it instantly freeze when I connect. I can still move the cursor, but nothing happens when I click. Tried restarting the server and reconnecting several times, didn't help.

So any hints for a newbie?