This may sound too simplistic, but have you added any fonts lately?
If so, or if not, you may have a corrupt font(s), which if a
previously good document goes bad, it could be signs of corrupt fonts.
I hope this isn't the problem, because this is very difficult and
time consuming to alleviate.
Just a thought.
On Dec 2, 2011, at 5:16 PM, Amanda Ward wrote:
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
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