Turn Signals

I have an 2001 A6 2.7T and recently ran into a problem with my turn
signals. All of a sudden, they don't workanymore. When I engage the
signal,the lights d not blink <signal> but when I check outside the car,
the lamp on the side that I switched to is on, ut notblinking.

First thought was to change the fuse, but when I putin a new one,it
still would not work.

Questions, what, other than the fuse could be causing this ?

Any help appreciated.