#1: I've noticed that sometimes when I copy/paste in the pattern sequencer that it'll sometimes offset the paste a hair and it won't line up with the rest of the grid. It's like half a measure off. I can try and see if I can reliably reproduce it and post a .caustic file someplace for you when I get a chance.
#2: I'm probably screwing something up, (I added a bunch of instrument packs from the market when I was just getting setup), but it seems like *most* of the instruments for the PCMSynth are out of tune! Anyway I can fix it/maybe something to fix in an update?