Adobe Illustrator 9 was very slow and unstable on many systems, took two patches to get it stable. Adobe made such a mess of the first Windows patch for AI10 that they pulled it and later issued a 10.02 patch. There have been many complaints about Photoshop 7 and about the .01 patch. Painter 6 took three patches from Metacreations to become reasonably stable, then Corel bought it and issued a 6.1 patch that wiped your desktop if you had a shortcut to Painter there. CL is not alone, and is not necessarily grossly incompetent or malicious.