Vista - Can't stop automatic reconnect to mapped folder

I have a small LAN (6PCs with XP Pro and Vista HP).

Automatically reconnecting has worked fine but my LAN has just changed, so
need to stop reconnecting to a mapped folders (as Z:\ drive).

After a few days, I can't figure out how to do it. Examples of things I've
tried:

1. Right clicking on the folder in Windows Explorer then choosing Disconnect
works until the next reboot (Z:\ drive is right back again);
2. Disconnecting (as 1 above) then re-mapping to the same folder WITHOUT
selecting the Reconnect at next Login - Z:\ drive is back again at next
reboot;
3. Looking inside Disk Management console doesn't display any mapped
drives/folders;
4. I've mapped a different network folder using the same name but the
original folder was simply renamed so I now have a new Z:\ drive and the
original was remapped as Y:\ drive (I don't want either boo hoo).

I can't find any answers on the web (it's all about "How to MAP A Network
Folder") but nothing about breaking the automatic reconnection.

Can anyone please help me, am very tired and sad (

J

--->Have you tried opening up a command window (Start -> Run: 'CMD' and an
Enter key) and then run this command in the window:

NET SHARE /?

The various possible commands shown might help disconnect your shared drive.

Questor