Hey streamwalker...I've had the same problem (still do
) and, at least in my case txshane is exactly right...
There are a bunch of old threads about tailing loops that address this in excrutiating detail. If you search or just look back in "the fly cast" I'm sure you'll find more info than you can stand.
Good luck...I can keep mine at bay, but really have to concentrate to do it. Probably should either fish more (uh huh) or practice (ugh).