I am having an issues with the installer on my mac, for instance i am trying to install MS office and i open the dmg, the volume mounts. Then when i click on the installer for it, the installer app comes on and tries to start, it bounces a bunch of times in my dock then it quits. and i get and error message. I have tried repair permissions and nothing, im running 10.5.2, i dont want to update cause in my software update it only has 10.5.6 and i want to be able to get my iphone into DFU mode still, and i cant update to 10.5.5 cause the same issue happens when i try to install it. Any help will be greatly appreciated.