I'm not sure if anyone else has had this happen but quite often as rebuilding I get the closing dialog with the 15 seconds countdown on the modal mapper dialog, the problem is that sometimes the ok buttion is unclickable or at least does not respond to a click and I then have to then wait for the timeout which sucks.

Not sure if it is something just with my system or what but you would be suprised how annoying it can be to have to wait for the thing to time out. just had it happen a few times and thought I'd mention it.