Getting Leopard's BSOD? Try uninstalling APE.
![](https://s.yimg.com/ny/api/res/1.2/HN1SI1fKYhM0dxO0bEVVUg--/YXBwaWQ9aGlnaGxhbmRlcjt3PTQyMDtoPTMxNQ--/https://s.yimg.com/uu/api/res/1.2/4dJYGfYiGWtAULuwL90opw--~B/aD0xNjk7dz0yMjU7YXBwaWQ9eXRhY2h5b24-/https://www.blogcdn.com/www.engadget.com/media/2007/10/blue-leopard-fur-bsod.jpg)
While there's no easy way to account for everybody Leopard user's crashing, Unsanity's Application Enhancer is apparently the cause of many a BSOD turning up on a range of user's systems during a system update to Mac OS X 10.5. If, after selecting "update," you're getting a perpetual blue screen, follow Apple's instructions for booting into single-user mode to remove the offending software. If you haven't updated yet, make sure you get rid of the software before you do: alternatively, do a fresh install and it'll overwrite any of the conflicts you would encounter otherwise. And remember to backup, backup, and backup.
[Thanks, Dilan J.]