If I click the "abort" button on the progress window while doing a "Save as", I can then no longer use the contact sheet and have to force quit PM. Clicking anywhere in the contact sheet or navigator produces an error beep and nothing happens. Many of the menus are greyed out, as if a dialog window were open, including the Quit item. What does still work are menu items that apply to the actual images - set color class, tag, IPTC, etc.
Is this a bug, or am I being ignorant?
This is true in both 4.6.5 and the current beta. Running OS X 10.6.4.