I meant height of 768. Yes, it is SR3. I uninstalled Poser 6 and reinstalled it without any updates. I was able to resize my document window to 1000 by 1000 or whatever I wanted. I shut down Poser, then reinstalled SR3. Opened Poser, and the document window size would not let me resize it to anything taller than 768. So, I unstalled Poser 6 again, reinstalled it, then installed service release 2 - thank God I still had it! Now, everything is working fine. Think I'll hold off on SR3 until this is fixed.