I have the same problem listed in the original post.
My system is a Toshiba Satellite Pentium IV notebook running Windows XP SP1 on a network with a Windows 2000 Domain Server (actually Win2k SBS).
My Documents is also redirected to the users share on the server. It is set up for offline files so that it can be used at home.
This problem used to happen frequently (sometimes several times a day) until I told Windows XP not to go into standby mode as part of the power management preferences.
Now it is generally OK, but occasionally (say maybe once a week or less), the same problem will reoccur. Usually, I can get it to reconnect again by clicking on the little computer that pops up in the system tray and telling it to continue working online, but if I can't, restarting the laptop will get it working again. its a huge annoyance though because it will cause my accounting/database app to crash.
From the sounds of things this may be the fix for my problem. Unfortunately its going to be a long process reinstalling everything!
Just wondering how other people went with this?
Thanks