I'm having the exact same problem. However, I'm running Norton Ghost 12 on a Win XP Pro machine. Everything used to work just fine. But several weeks ago, I noticed that LiveUpdate installed a Ghost patch, and ever since all backups get stuck at 95%. I'm backing up to an external USB device (a 4-drive Drobo) and it hangs after the image has been verified.
The weird thing is that the status dialog reports conflicting information. On the top part, it's at 95% and the message is "updating history". But the bottom slider is disabled with a message saying that nothing is running. When it's stuck in this state,TaskManager shows that VproSvc.exe is pegging the processor. I've let it run for over 15 hours and it never gets out of this state.
There also seems to be no decent way to get out of this state (even though the top of the status dialog says that it's at 95% and "updating history", the bottom part that says nothing is running and has the cancel button disabled. I have to restart the machine, and when shutting down, I get a dialog that asks if I want to cancel the current operation - to which I say ok. Then, once the machine restarts, everything is fine. The backup is there and I can validate it with no problems (the hang seems to happen after the backup is created and verified).
So... this is a major pain as I now have to restart that box at least 3 times a week to get out of this state. To date, this is the only place on the web that I've found anyone else complaining of a similar problem.
Any ideas on what I could do about this would be greatly appreciated.