Vista Network Access Problem

[JimmyJoB]

Have a network w Vista #1, Vista #2 and XP #3.

All worked OK; until I had to rebuild Vista #1.

Rebuild Network, shares, etc.

Now Vista #1 is fine; however, I get access denied when Vista #2 tries to access Vista #1. Both can see XP #3 just fine.

In Windows Explorer, Vista #2 brings up Vista #1 and shows 4 shared items. When I try to access one (a folder) on Vista #1 it won't let me?? The folder in question shows up correctly on the Vista #1 Network as shared?

Any ideas?

Thanks, Jim