Hi, After recently loading Panther on both a G3 tower and a G4 laptop, I have discovered an unusual problem mounting disk images of installers and program updates. Not all of the time, but about half of the time. Tried using Disk Utility to mount and/or open these images with this result: "initiallizing disk image" then "error-536870208". The same disk image will work fine on other Macs, but with no apparent rhyme or reason. Any suggestions?