Ok so I bought my Xfire... so im cool right??? NOPE!

When I go to put the stick shift in reverse its not catching and I get the evil grinding sound. The only way it seems to work is if I hold the shifter in reverse, engage the cluch and only then it will stay in gear.

I know you gotta lift the shifter up then put it in gear but it doesnt seem to work... Am I doing it wrong or do I need to see my local dealer?

Think it would be under warrenty?