Network drive not accessible?

Hello,
I'm having an issue that hopefully someone can help me with. I have a desktop that is running 64 bit Ultimate and my laptop is running 32 bit Home Premium. I have the laptop set up as wireless and the desktop as direct connect to the router. I set up a home network so I can access my drives from either machine. I can access two desktop drives from my laptop, but it won't let me access some of the other drives. From the desktop, I cannot access any drives on the laptop. The drives that it won't let me access says

"\\Buenings\My Music is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.

Access is denied."


Why would it let me access some drives and not others? I have the Network Discovery amd File Sharing turned on. All other items are turned off, including Password Protected Sharing. I followed the steps of "Set up a connection or network" and it is set up as a Private Network. Let me know where things may be goofy or things to check. I'd like to get this going correctly if possible. Thanks!!!!

I have the same problem! When I try "net use \\mycomp\c$ /user:myusername" from my XP comp to Vista, it says access denied even when I type it right!

I solved it! It is quite weir but it works. Check this out:
Can I access administrative C$ share without enabling admi..

Weird, I tried that for both my laptop and desktop machines and it didn't work Any other ideas guys?