Hey, I'm animating a character using bones but when I go back to edit, say walking, the changes seem to ruin any animations that come after that. Is there a way to edit just the current frame? Am i being extremely stupid here? :-p cheers

Use 'Frame Range' or 'Auto Scene range' from memory (forgot what its called) and all your following anims should be updated to reflect the changes from a prior one.
Acesed from the time line, lower left bottom.

Im trying to get changes in previous anis to not be reflected in later ones though. Like re-touching my walk ani now also alters crouch and any other ani after walk. Any way around that?