Buggyyyyyyyy WME 6.5

[shezza]

So I finally got 6.5 a few months back and found it to be slightly more buggy than 6.1 but managable. Now it is just out of control. Freezing non stop and the sort. To top it off, my reception keeps cutting in and out.
So I did a hard reset and nothing has changed! :S
Is there anyway to go further than a hard reset?
How would I revert back to 6.1?
Any comments would be appreciated