Here's a couple of weird ones

PRV = undocked, editing drums. Maybe I touch the ctrl key with the heel of my left hand as I mouse with my right, I dunno but BAM!, all the notes disappear. They're not over here or over there they're just gone, but do play. Closing PRV and reopening we're back in business. This has happened about 4 times in the last two evening editing sessions. I'm used to living in the PRV editing drums. Been doing it since Sonar 6. This is a new issues for me.
 
2. At the end of the song is a guitar part in two mono clips. I needed to hi-pass just those clips so I added a waves renEQ
to both clips fx bin. Set them up and made a cd. Next day I opened one of the renEQs and the EQ GUI frame was there but the GUI body was the Sonar window area is covered. Moving the eq drag the Sonar screen clip around with the frame.
 
Deleting the renEQ and reinserting it fixed that. It happened in both clip's bin.
I expect this problem is this old renEQ but It probably shouldn't happen.
 
Win 7 32 / SPlat Manchester
Dell Quad Xeon Precision 690
Old Pedestrian Dell Nvidia 9300GE video card.