Incompatibility with ATI Radeon HD 4870
0x98c93fc8 : 0x29e44d (0x2113c164 0x1 0x10 0x0)
Kernel Extensions in backtrace (with dependencies):
com.apple.ATIRadeonX2000(6.0.6)@0x99753000->0x998adfff
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x8eea3000
dependency: com.apple.iokit.IONDRVSupport(2.0)@0x98cfc000
dependency: com.apple.iokit.IOGraphicsFamily(2.0)@0x98958000
After that I've tried to replace the ATI Radeon HD 4870 with my old Nvidia 8800 GT and the crashes are disappeared completely, also the kenel panic.
The 8800GT however is noticeable slower than ATi 4870 and Aperture3 is very slow with ATi, sadly slow with 8800 GT: using brush skin tool with zoom 1:1 (Z key) with color overlay and RAW images give refresh from a stoke to other until about 2 minutes! Unusable.
Also in that "wait state", activity window always reports: Generating Thumbnails (every says that)
Sorry to see that, because quality and features in this version are very exciting!
Maybe most other issues are mainly connected to graphics drivers.
macpro 8 Core 3GHz early 2007- cinema display 30", Mac OS X (10.6.2), 24 GB ram - ATI Radeon HD 4870