This is directly at the top left of my desktop. Seems to happen when I minimize construct and run a fullscreen game or software that changes my computers resolution but I'm not sure just yet... I'll figure out how to reproduce it...I'LL MAKE IT MY LIFES MISSION TO REPRODUCE IT. *gets m16*
Worst part is that when alt+f4ing at this stage, it asks if I would like to save, which I say yes, then it saves, then remains there.... then I try alt+f4ing some more then it gives me a windows crash dialog.
EDIT: Yeah...Construct 2 goes funky after having a fullscreen game up... not a deadly bug but it's kinda annoying.