Help with Xbox 360 Wireless & Windows 7 media streaming!

[ryes31]

Hi, I've been scouring the internet for the past 2 days and trying everything I can think of, but I can't get my Xbox 360 to access my PC via my home network. I've tried with and without Windows Media Center (as a Media Extender).

This is the new slim Xbox 360 with built-in wireless capability and that's the main reason I got it, so I can stream wirelessly. Before this, I used to run the normal Xbox 360 direct via ethernet into my router and had NO problems streaming videos using Windows Media Player 11's library sharing. Now, I can't even get it to find the PC.

Here are the specs-

-Desktop running Windows 7 Ultimate 32-bit (direct ethernet into router)

-Windows Media Player 12

-Xbox 360 Slim (wireless)

-Qwest modem/wireless router

I've enabled all the different sharing options I can find, turned off all firewalls completely, disabled the HomeGroup, and I still can't access the PC from the Xbox. However, when I view the full network map, it shows the Xbox 360 connecting to my wireless network. (see the attached JPEG image)

Any ideas?? I'll try anything...I've been going at this ever since I got the new 360 and it's frustrating as hell. Thanks in advance!!