ORIGINAL: zx360
my radio has a little slide open compartment that lets me adjust if when i pull the trigger its rev. and when i push the trigger its forward... see if there is something like that... or post up a picture....
In fact it could actually be that, I know what you're talking about. My current RC car has that. But seriously, it was weird. It's got a proper Tamiya ESC (-TEU-101 BK) so I don't think it could stuff up like a china import or anything. But I guess anything could happen if it hasn't been treated and maintained carefully.