Thanks to John and Jim for their response!!! What I've done since my first post:
Ran disk utilities. Found 1 permission error in an iTunes directory. Repaired that. Verify disk reported no errors. Then I nuked and reinstalled just the OS (10.6). Tried to update to 10.6.8. "Cannot expand the file. The file may have been corrupted" Re-nuked and reinstalled just the OS. Tried to update from a file downloaded on another computer. "Cannot expand the file. The file may have been corrupted" Re-nuked and reinstalled just the OS. Ran Drive Genius 3 verify. "Disk appears to be okay". DG 3 scan found no bad blocks. Re-nuked and reinstalled the OS. Restored from the earliest Time Machine Backup. Still the same problems. Ran Disk Warrior 4.3. Smart status was okay. There were directory errors… rebuilt and replaced. There were file errors reported, but I'm not sure what DW did about them. Still the same problems. Files are corrupted or have invalid checksums. I dunno!?!?! Amanda On Nov 19, 2011, at 9:50 PM, JohnCarmonne wrote: > > On Nov 19, 2011, at 9:15 PM, Amanda Ward wrote: > >> Hi All… >> >> Recently I've had problems with files I've downloaded not opening because >> the file is "corrupted" or has an "invalid checksum". Also found files that >> I've downloaded in the past and successfully installed are now corrupted, >> etc, etc… >> Most recently the backlog of updates from software update have failed to >> open. >> >> I have no clue of what is causing this. Any advice will be greatly >> appreciated. >> >> Amanda >> >> Model Name: iMac >> Model Identifier: iMac8,1 >> Processor Name: Intel Core 2 Duo >> Processor Speed: 2.4 GHz >> Number of Processors: 1 >> Total Number of Cores: 2 >> L2 Cache: 6 MB >> Memory: 4 GB >> Bus Speed: 1.07 GHz >> Boot ROM Version: IM81.00C1.B00 >> SMC Version (system): 1.29f1 >> OS 10.7.1 >> > To begin with I'd run permissions repair and DiskWarrior just to get that out > of the way. > > > John Carmonne > Yorba Linda CA > 92886 USA > MacPro 2.66 Quad Nehalem > > > > > > > -- > You received this message because you are a member of the iMac Group, a group > for those using Apple iMacs and eMacs. > The list FAQ is at http://lowendmac.com/imac/list.shtml and our netiquette > guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to [email protected] > To leave this group, send email to [email protected] > For more options, visit this group at http://groups.google.com/group/imaclist -- You received this message because you are a member of the iMac Group, a group for those using Apple iMacs and eMacs. The list FAQ is at http://lowendmac.com/imac/list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/imaclist
