I have an iMac running Mac OS X 10.7 and I have it hooked up to my Windows workgroup but when I try to connect to it from my Windows computer it asks for a username and password.
I've tried the account name and password on my Mac but it doesn't work and it gives me a dialogue box that says,
You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.
I have all of the file sharing settings set up accordingly so that it should be able to work.