I also did this:
Open up a preset in GR2 and try the midi learn function. For example I used my PC Keyboard to turn on/off one of the effects. I right clicked on the reverb effect(on/off switch) selected "learn", hit the space bar on my PC keyboard and GR 2 froze. Can anyone else reproduce this???
Windows XP Pro SP2
Delta 1010
Midisport 8x8
1024 gig of ram
P4 2.4
