I've been having this problem in Vegas. I go to apply an effect and the window is too big to fit on my monitor. I have to drag the window all the way up to the top of the screen in order to see all the keyframe buttons & features at the bottom of the window. I;ve noticed this in photoshop too. It's like the windows are too big for my screen and I can't resize them. I'm using a screen area of 800X600 in my display properties (anything else is too hard to see). I also have a radeon 8500 video card that comes with hydravision. My set up is duel monitors with an older 21 inch screen and a 17 inch flat screen. Still some windows are too large.
Anyone else have this problem or know how to correct it?