Interesting - I've been searching from time to time for information on how to do GUI stuff in Windows perl. Everytime I looked, there was some important piece missing though. Looks like it's more complete now. I tested your script with ActiveState build 638 (perl 5.6.1).

One thing: when I maximise the window, it seems to set the correct size, but the window is not moved. If I do move it before maximising, it jumps back to the original location. Anyone know what could be causing this?