Resharper 6.1 with dot Cover 1.1

Hi - I have:

JetBrains dotCover 1.1.1 Full Edition
Build 1.1.313.14 on 2011-07-29T15:28:36

and

JetBrains ReSharper 6.1 C# Edition
Build 6.1.37.86 on 2011-12-20T21:15:24

However I can't get resharper to be the test runner for dotCover.

When I click the yellow and green dot beside the Test I don't get the option to "Cover with dotCover"

I have tried reinstalling both Resharper and dotCover.

Thanks

Robert