So a while ago I was coming out of work and my bike fired up and ran perfectly for the 400 yards I drove it to the nearest gas station. I shut down, filled up, and tried to start it again and nothing. Completely dead and wouldnt start. I caught it in gear and it fired right up and made it the whole 20 mile ride home from work. I get it in the garage, shut it down, and try to start it again and same thing...wont start. I let it sit overnight as I was tired from work and not wanting to deal with it at the time. I come out the next day to mess with it and again it wont start. I catch it in gear in my parking lot and it fires up no problem. I am literally creeping through my parking lot in 1st gear at about 5mph and my speedometer and other gauges are going crazy. Its telling me I'm doing 90mph and constantly fluctuates up and down from there. All other lights and gauges are acti9ng wierd as well.

I'm assuming maybe the computer or ECU went bad?
Any suggestions?
The battery and voltage regualtor have been recently replaced...just an FYI