Bike Computer - Trek Incite 9i

I was given this computer when I acquired my Giro back in June. My BF is the service manager at a LBS and a sales representative gave him the computer. I'm having a heck of a time resetting it after each ride. I've read the owner's manual but it takes forever for the data from my most recent ride to clear. I scroll through until I get to the "trip" function and I press the mode and set buttons at the same time but it does not want to clear. I've recently became very frustrated with the computer and took to poking the "reset" button on the back but this requires that I re-enter all the necessary data each time. Either way it is a royal pain. If anyone has any suggestions on how to clear data from my most recent ride without wiping everything out or spending 10-15 minutes after each ride pushing buttons I would appreciate it. I really wish I could complain to the company but given it was free I'm not sure this is really kosher.

Thanks in advance,
Marcie