Surround Panner GONE!

Using Cubase 6 32 bit but want to change to 64 bit. Installed 6.5.5 but when I tried to open a surround project, all the surround panners are greyed out, I cannot pan them in thevsurround field. I have checked that the VST folders have been correctly pointed to, so what could be the problem?

The problem is my Novation Automap, it corrupted the surround panner. Once I deleted the automap dll, everything works fine.