Drive not accessible; file or directory corrupted

[Cervino]

I'm running XP Pro SP2 problem free for the last year with three drives (C -
system drive, D - software drive, G - data drive). This afternoon, I
uninstalled CA Antivirus from my system which required a reboot to complete.
When my system booted back up I found that my D drive was no longer
accessible. Its icon shows up in mycomputer, but when I click on it I get the
message:

D:\ is not accessible
The file or directory is corrupted and unreadable

Any thoughts on what's going on here and how to fix it? I'm out of ideas.
Thanks!

 

[Mark L. Ferguson]

Rightclick the drive icon in explorer. Properties, Tools tab, "Error Checking"

 

[Cervino]

I tried that, but when I click OK to start the error checking, the dialog box
disappears and nothing happens. There's no discernible drive activity as far
as I can tell.