I'm having a similar problem.
I'me trying to recover my entire disk backup from a .v2i file on external USB drive.
When the restore started it calculated at finish time of 6 am. At 6 am it posted a message that 27 minutes was remaining, now it's 11:25 am and it says 49 minutes remaining.
I can't imagine what is happening here, any ideas?
I ran this restore using the recovery CD so there are no antivirus or other tasks running.
(Moved to its own thread.)