Unable to access SAMBA shares via Windows 7 (The network path was not found)

I have a samba share setup in Ubuntu that i'm able to access via boxee perfectly. In windows 7 starter, it recognizes the share folder (TUX) after configuring the workgroup to be the same.

However, it is not asking for username/password and keeps saying "Error code: 0x80070035. The network path was not found"

How do I force windows to ask me for username and password? Also, my smbtree in Ubuntu shows the following:

MSHOME
    \\TUX                   tux server (Samba, Ubuntu)
        \\TUX\IPC$              IPC Service (tux server (Samba, Ubuntu))
        \\TUX\xyx masked download   
        \\TUX\vuze downloads    VUZE
        \\TUX\print$            Printer Drivers

Not sure why there are 2 levels inside MSHOME and could be causing the issue too

Try map the path as a network and select to specify your own username and password, this can be done from My Computer (or just Computer in Windows 7).