Sure the screen resolution makes a difference. Why do you think that the message says, "Proper window size unavailable,..."? I've only received this message when I mistakenly left my display at a lower resolution than the one normally used. You can run Poser at 640x480 or 800x600 after making adjustments, but it expects at least 1024x768 (check out the smallest prefs xml in Prefs). I've always run at 1280x1024, but now at 1600x1200, I can set the Document Window to 1024x1024 with plenty of room for all of the tools. Most 17" monitors are capable of at least 1280x1024x32bit. [sarcasm] Do I hear a groan from all of those who can afford Poser 5, but can't afford a $100-$200 17" monitor? [/sarcasm]