My chat box is cut off in windowed mode 1280x720 on Windows 7. (Note, that sentence ends "-this game." Missing a word off screen.) On a side note, please fix the tabbing for full screen windowed on Windows 7 soon. Playing on a tiny window on my monitor is freaking me out
Instead of alt-tab, just use windows key-D to get to the desktop, then open whatever you want. You should see what the game looks like at 1920x1080...
Strange, works ok for me. Alt-tab does nothing, but if I do Win-D then select an open browser window, all is good