I have joined the domain on my Mac, however that is only for Mac OS, it doesn't pass through to Wine. Wouldn't it make since for Wine to support Windows Networking? A number of applications depend on it. Or at least leverage the fact that if the main OS is part of a domain that Wine hooks in to it or something. Samba doesn't solve the problem with Outlook (Or any other program that needs Windows Networking) requiring domain credentials every time it's open and over so often while it is open. Since outlook doesn't allow you to cache this, and the Mac OS Keychain doesn't support this, it is a big nussience.