(O.T folder sharing & Windows 2000)

I have created a shared folder on a Windows 95 client. My Windows 2000
clients connect to the folder intially and then get access denied on later
attempts to connect. My Windows 98 clients connect as expected without
problems. Is this just a simple Win 2000 configuration issue, or is it
related to my Small Business Server 4.5?

Thanks
Dan Shallbetter
States Electric Mfg.