Hi all, I'm on 10.6.7 - Logic 9.1.3 (1697.87 32bit) MacBook Pro 2.66 i7 8Gb RAM Try this. Doubleclick a MIDI region, then edit some notes in the piano roll. Make a selection of notes, then select Functions>Transform and click 'Fixed Velocity'. In the Transform window, drag the velocity up. Does Logic Pro crash? For me it does everytime. This has been pointed out here and I wrote about it on my blog here. Just so that you know! I'll post a crash report in a reply. Cheers.