jason.weaver wrote:
. . .
1) I am not using an external hard drive, but rather a 1TB Time Capsule.
Yes, the verification is run on any network backup.
2) It has been (at least) a week since any software updates were installed.
Updates are not involved. The verification found a problem with your backups.
3) This error came up on my screen when I was connecting to the campus network in my office, but my TC is at home.
That is odd; apparently it found something that looked like your backups.
4) I'll have to double-check, but I don't think my wife got this message on her MB and we both back up to the same TC.
Again, you only see the message when the verification finds a problem, and your backups are kept separate from hers (there's a "sparse bundle" for each Mac on the TC).
Is there a chance that this is just a fluke, or does this message guarantee that my backups will be erased and replaced with a fresh full backup the next time that I connect to my home network?
As stated in the message, there are two options: +Back Up Later,+ which stops all backups and repeats the message daily; and +Start New Backup+ which deletes the current ones and starts over. See #C13 in [Time Machine - Troubleshooting|http://web.me.com/pondini/Time_Machine/Troubleshooting.html] (or use the link in *User Tips* at the top of this forum).
Also, being that I am running Time Machine on a unibody MBP over a wireless Apple network to Time Capsule - what could be the problem? Does that narrow the issue down to my TC's HD?
We do not know the cause; just that the backups are corrupted beyond repair.
Your best bet is to simply turn Time Machine OFF while at your office; see what happens when you turn it ON when in range of your TC.