[dafire]

The MouseIsOver() function is not working if the interface option frame is shown.

I think this might be a relict from the time when this window was fullscreen.. but now when it is only that small window in the middle of the screen I think the function should work nevertheless.

UIParent.lua

function MouseIsOver(frame, topOffset, bottomOffset, leftOffset, rightOffset)
	-- Don't honor this if options frame is up. Might want to extend this to all center frames
	if ( InterfaceOptionsFrame:IsShown() ) then
		return nil;
	end

[..]

I'd post it in the official forum but I don't have an us account.