I can no longer see a drive on my other machine

[Bill H]

I have two machines on a home network.
Machine A is WindowsXP with a c, d, e drive
all 3 drives are set up to be shared.

Machine B is a Vista Premium.

Previously, my machine B could see and write to all 3 of the drives on
Machine A.

But the other day, I lost sight of the D drive on Machine A.

In Vista, I go to Computer, and it sees Machine A but only C and E drives.

D drive is AWOL.

I have no idea what happened and I went and made sure all shareing settings
for the D drive are still the same.

How do I make the Vista machine see and again use the Machine A D drive.

please and thank you

 

[Bill H]

Nevermind
I went and did a 'Add network Connection' and was able to re-establish the
connection.