It appears that some Leopard upgraders are getting a taste of the infamous BSOD that Windows users have had the mickey ripped from them for ever.

Initial reports indicate that the main culprit is an application called “Application Enhancer”. Looking at it’s product page, it isn’t surprising at all that this program causes problems. It looks like a tool for hacking into low-level OS functions to change their behaviour so that other products in Unsanities portfolio, and other developers such as Logitech, can change underlying Mac OS behaviour.

Apple will be getting a lot of “it just works” NOT, comments for this, but how can an OS provider protect themselves from this sort of programs abuse. By nailing things down like the iPhone, I suppose, which nobody really wants.

So, it’s a consequence of having an open(ish) system, and a program that plays dirty. It would have been real nice if Unsanity had advised their users of the problem in advance.