1. DISABLE FLASH HARDWARE ACCELERATION
2. Flash does not crash on over a dozen machines here. To me this sounds like a PC issue and not a flash or software issue.
I play games on Facebook, & was using Google Chrome, but kept having flash crashes. I uninstalled my flash, because Chrome has it's own now, that apparently no one knows how to fix, but still had crashes. I uninstalled Chrome, & have installed Firefox, but now some of the games won't load. I re-installed Flashplayer 11. Any ideas??