Reversed animations?

Hey all, having a small problem on my model, the animations of my rotor shaft are animating backwards, i.e. when I push foward it moves them back, push left they go right etc.I've tried re-animating the dummys, they playback fine in max (max 8 BTW using panda to export) the thing is they've been working fine for 2-3 months now, only yesterday as I was texturing a part of the rotor have they been doing this, there are 4 dummys, 2 l_r and 2 fore_aft.I've tried to rename them (add a _0 at the end) just incase of a name share but no luck.Any ideas?Cheers