Sharing: Unless Go Into The Network And Actively Log Into The File Server?

I recently upgraded a few of my systems to various versions of windows vista and I have run into an issue that is a bit hindering with regards to my media center. I upgraded my file server to Vista Ultimate and I upgraded my HTPC to Vista Home Premium. I'd like to add the media file folders from the file server to the video list on my htpc, the problem is, after i have added the folders to be watched on the file server they do not show up in the list after a reboot; unless i go into the network and actively log into the file server.

There is no password required, so all i need to do is to type anything in the username field and hit enter, then go back and refresh the videos list and the folders appear. The problem with this is each time i power on the htpc i need the mouse and keyboard which clutter up the living room. Id much rather have them both unplugged 99% of the time and as it stands now, this network login is the only thing i have used them for since i completed the configuration. It alsomakes it a bit confusing for my girlfriend (to the point where she just wont bother using it unless im home)