There is a reason why people dont want to update to 6.1.6 and thats because it doesn't work properly, i myself wish i had stayed with 6.1.4.
There is a solution though when the RC comes out, and that is to do all the upgrading then.
From 6.1.4, 6.1.5 6.1.6 and then dolphin 7. Its a bit long winded but it can be done in a few hours.

regards

tyke