Plex is a great media center for Mac OS X.

There seems to be issues with the combination of Plex and the new Snow Leopard release for Mac OS X.

In the Plex Forum there are a number of threads for Snow Leopard issues and workarounds.

The Plex homepage also states a official summary of the issues.

My experience is that some streams in the free App Store, like Joost for example, works fine and some of them, like SVT and ViaSat Play, are not working.

Lets hope for a new more stable release of Plex for Mac OS X 10.6.x..

Check out the App Store feature in Plex: