The ribbon cables (2) need to be gently lifted for proper cleaning. I used non plastic corrosive contact cleaner and Q-Tips being careful not to bend or damage the contacts.
I did however continue to have issues with the LED's scrambling until it became maddening. I contacted Mesa in May of 2010 and had shipped my Triaxis for a full overhaul. I was surprised at how inexpensive it was to have this done and the peace of mind it gave me. The technician in Pentaluma went over everything including installing new ribbon cables (the suspected culprit), clean and replace some jacks, a total software update for a version 1, complete top to bottom bench test and a bench burn test. I'm totally satisfied! The cost was under $300. and it included me having a new touch pad membrane installed. All in all, money well spent.
Here's the rub: It took 6 weeks from the time I shipped until I received it from Mesa... and Mesa will charge to return ship.