The way to fix this is if you have 10.5.6, then download the seatbelt.kext from the 10.5.5 release then this will probably fix it!
I experienced this problem with iDeneb 1.4, and this easily fixed the problem.
Thanks to Pere from uphuck.ggrn.de forums for link to solution!
Tags: DMG, hackintosh, ideneb, kernel panic, mounting, osx86, seatbelt.kext