Lost Neutral

[Simonpie]

I know some here have had a bent shift fork that allowed the trans to be in 2 gears at once, thus locking solid. If the fork was just a bit bent, it could "close the gap" between 2 gears, leaving so little room that neutral would be difficult or impossible to find, but still not lock up. You'd have to be pretty lucky to get just that much bend on it.
Regardless, I think the answer is in the tower somewhere, which is lucky.