Just upgraded to GF Version 18.104.22.168.1 on wp 3.3.2 localhost with only GF and GF registration activated.
I have tried shutting down browsers and reopening (safari and firefox)
I then resorted to IE (hardly ever use that!).
Sometimes when clicking on edit, the edit box will stay open. Sometimes it will not open. Sometimes it jumps open and then closes again.
Haven't been able to pin down the pattern.