Anyone else seeing this? After a period of time, Up and Down arrows fail to take the playhead to previous / next edit point.
This occurs on both my Macs 10.7.5 & 10.8.2 / Prem CS6.02. Other keyboard commands are working, as are Left / Right arrows for moving frame by frame along the timeline.
I am using the default CS6 Keyboard set, without modification.
The only way to cure this is a Mac re-start.