Network mapped drives showing disconnected

I have two Windows 2003 Standard Terminal Servers and a Windows SBS 2003
server. There is a script that maps network drives on the Terminal Servers
when users log in. I have 2 network drives that show disconnected but work
and if I do a net use from a command prompt those drives do not show up in
the list. These servers also have Symantec Anti-virus 10.1.1 which I have
seen there may be an issue with network mapped drives. I found this article
http://support.microsoft.com/kb/932463 and deleted the two drives, logged off
and back on but the drives did not map from the script. I would appreciate
any help I can receive to fix this issue.