Blitzmax game suddenly slow

BlitzMax Forums/BlitzMax Beginners Area/Blitzmax game suddenly slow

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So I read the "Blitzmax SLOW SLOW SLOW" thread, and to my surprise discovered I was running a very old Blitzmax. Something like 1.09 or something. "Woah great" I thought, and immediately updated (yes, remembering to uninstall and delete all instances of old blitzmax).

PROBLEM!
The crappy laptop I use to test my builds on (Windows, celeron 2000ish), to see if they're not too slow, now runs my game at a crawl. It's not even 4 fps. Before, it was smooth even with 4000+ balls on the screen (breakout clone). The other laptop I'm using to code and test on (Pentium M-1.6) runs it just fine.

Edit: On yet another machine, it used to run very slow, but it ran. Now it just shows the console window and closes it. (Windows 600mhz)

What happened guys? It worked fine with 1.09 and now with 1.16 it's crawling. I'm having the exact opposite problem of the guy in the "Blitzmax SLOW SLOW SLOW" thread..