I've just upgraded to R2 from R1, on which I had fglrx drivers installed and running perfectly, now that I've upgraded the drivers no longer work and graphical performance downright sucks. Could it be that the drivers are incompatible with the new kernel image or is it something else?

This is more of a request for help resolving the issue than a bug, forgive me if this thread should be somewhere else, but this forum seemed to be the most relevant place to put it.