I had the same problem (Perl 5.8.0 on slackware 9.1 with Tk just updated from CPAN). I just removed line 520 from lib/BlockStacker/GUI.pm and the program ran fine. It did open up in a very small window way up in the top left corner of my screen so I had to resize and move it though. (By the way I'm using Fluxbox.)

Also very neat game William G. Davis. I especially like how it looks like you had fun with the messages in the game and the extra odd shapes that I'm not used to dealing with in most tetris games. ++ indeed.

Thanks guys. I removed the offending line from BlockStacker/GUI.pm and uploaded a new version to SourceForge.

As for the shrunk window, I think that's due to either using geometry("+0+0") to position the window but not specify its size, or the withdraw()/deiconify() + raise() combo used with it, or maybe both. Try commenting out those calls in createMainWindow() and runMainLoop() in GUI.pm and see if that helps.

New Version:

• Increased stability. Starting a new game while the level is changing or the hammer is still on screen doesn't screw things up.
• Images are now pooled instead of being constantly created over and over again. (See this node and this node by pg). Images are loaded once as Tk::Photo objects, then reused from then on with the new getImage() method.
• Blocks displayed on the block preview canvas are now properly centered.
• Changed the next level message.
• Cleaned up the code more.

I must say, this whole process was as easy as it was enjoyable. I would encourage anyone thinking of doing something similar to go ahead and do it.

You are one sick and twisted puppy.

++.

Added a high scores and a help window. Needs FreezeThaw now too. I also got rid of some memory leaks in it. (Some internal arrays in the GUI class were not getting cleared between levels properly.)