I had serveral Problems with the Arduino Robot.
After upgrading the drivers I uploaded the first sketch (Compass). After that I can't upload another sketch. After 99% of the uploading process, its not completting the upload process of an new sketch on the on the Arduino Robot Control.
Can I set the factory settings on the Robot? (tool/bootloading didn#t work)
try seeing what serial port you have selected.
that's not the problem. it was working, but now I can't finish the upload process. it stops at 99%
oh well then i have no idea. what is the error message. You can get a better error message if you got to Arduino preferences and select show verbose during compilation and upload. then it will explain thing better. Hope it helps 