Short post which is probably just revealing something which a lot of people are already familiar with.
A really annoying thing with Evolution (and ECCE as well, actually) is that it doesn't play well with notebook screen. I have a Lenovo Thinkpad SL410 which has a 1366x768 screen and this is what I see when e.g. editing an account in Evolution:
Note the lack of buttons to click -- the Close and Apply dialogues don't show on the screen
I might be imagining, but I get the impression that GNOME projects don't like you to resize windows -- and you can't resize this dialogue.
In gnome, use alt+click and drag to move the window so that the buttons are revealed.