My iMac is 1280... the browser window opens up taking up about 2/3's of the width of the screen, and there's way too much blue margin left and right.

The center column is white, the text is too small. If I cmd-+ to increase the text size, the poster's name info cell gets weird.

Text size in composition window is worse, but cmd-+ to enlarge text size in the composition window has fewer consequences - except for pushing the emoticon table further into the margin.

I wish pages could be built to better dynamically grow with the user's wishes - making text size easier to read, while not destroying the designer's layout.