I bought an Arduino Robot a few days ago. I successfully uploaded some examples, but now I can't upload anything in my robot! Sometimes program says "Loaded", but often progam loades for a long time(and doesn't end). Anyway, I can't upload to robot something new. Robot works like Arduino Leonardo.
Do you have such problems? What do you usually with it?
P.s. I've already tried to check ports and drivers, nothing changed