It seems unlikely that you need to recapture. You can try to clean the media cache, possibly reimport your material and wait for the indexing and conforming to have finished before trying to edit.
I tried creating a brand new project and import an existing clip (which plays fine in Windows Media player), but it still shows audio ahead of video.
Are you sure that it was in sync on your other system? Pr has been known to create OOS (out-of-sync) errors during capture, but if the material was OK on the other system, it makes no sense it suddenly, from the same disk, gets OOS. We are talking about HDV captured with Pr?
I could never tell if it was out of sync in the video preview on my lap top because it was so jerky.
So the only way for me to ensure that it was in sync was to write it out to a DVD disk and then view the content on a TV.
(I know that it automatically transcoded it to be standard def instead of hi def)
And after doing that, I did not see any sync issues.
I know this method is too time consuming, which is why I build a desk top PC so I could do real time previews while editing.
I will try to write it out to a Blu Ray disk both from my laptop and from my new desktop PC to see if they both have audio sync issues.
This is very confounding.
I have also ordered a 6 pin to 4 pin 1394 cable (since my Canon XHA1 has 4 pin iLink firewire and my desktop pc has 6 pin) so that I can try to recapture to see if that is the issue.
It is a hassle to recapture, but if you are going that way, use HDVSplit instead of PR. It is freeware and offers everything PR should have offered from the start, but still does not. It offers scene detection, previews and no OOS errors.