My Nexus 7 won't detect in Windows XP? Any suggestions as to why?
Are you trying to sync it or have the Nexus 7 show up as a drive?
I'm trying to get it to sync my music with Media Player.
Check for updates with Windows XP. An update should be available for Windows Media Player 11. Looks like you have an older version on your system. Install the update and your Nexus 7 should be able to sync now. Reboot if your computer prompts you after it's done installing.