Airrace,

I'm gonna guess that you've had a previous crash.. It sounds like the swashplate has seperated. It's a two piece component. It can be corrected. Check it out closely, just use some needle nose pliers to press the two parts back together. The seperation doesn't have to be a lot to cause this problem. Also, make sure that your flybar is straight. This is sometime refered to "Toilet Bowel Effect".

Dave