Windows 7: Can't access only one networked drive out of four.

I have two Windows 7-64 computers on ethernet. The other computer has four physical hard drives, one partition each, C, D, E & F, all shared, and with "Everyone" given full access on the Security settings.



I can write files from my computer to that computer's drives C, E & F with no problem, but whenever I try to write a file to that computer's D drive, I get a popup window titled "Destination Folder Access Denied", with an error stating, "You need permission to perform this action". (I get analogous messages if I try to delete a folder, etc.)

I can read from that drive fine, and I can transfer files to it using UltraVNC.

I've gone through all the sharing and security properties of that drive, and I believe they're all identical to the other drives that cause no problems when I write to them.

What else can be causing this problem???

Hmm...tried changing the drive letter of the offending drive, and resharing it...still couldn't write to it over the network. Then tried changing it back to "D", reshared it in an identical fashion, and now I can write to it fine.

I hate Windows networking.