Here's a question that popped up recently on Tek-tips, but in fact finds its answer in a 2005 Google Groups post. It's about changing the screen resolution at the start up of a PowerBuilder application. "Is it possible to automate (in powerbuilder application), changing the screen resolution? For example, I wish to change the res to 768*1024 when my program starts, and back to original res when exits."
Find out the answer here