It happens to me a lot as well, and i did try to find a way to disable it as well, but havent find any. i think it can be deleted though, but i dont want to do that cos i use it often... Live with it...
any ideas how to delete it then? That thing drives me nuts. May be I can write an app just to kill it? Another question on the same subject - is there anyway to re-assign volume up/down buttons?