Ever since 1526 I've noticed the Output window (Alt+2) automatically closing on me. At least one way I've found to reproduce it is to jump to a method using the 'context' combo box (directly above the main edit window)
My assumption is VA is trying to close the find references window that appears above the output window.. but I haven't done any find references.
This seems fairly minor but it's becoming pretty annoying to me since when I reopen the Output window I'll lose my place in the find in files or debug tab.