Media Center Buttons not working

I have installed Windows 7 RC1 , Build 7100 (64bit Ultimate). This is a fresh install, not an upgrade.

Problem is, many of the media center remote buttons do not work such as:
next/previous chapter

This is the official Microsoft remote and receiver, not some imitation.

I've had the same problem in about 6 different builds that I've installed over the last few months (all fresh installs, 64bit).

Anyone else have this problem? It also has nothing to do with the DVD movies I've tried, I've tried several different ones anyway so its not the DVD problem.

This website is not affiliated, owned, or endorsed by Microsoft Corporation. It is a member of the Microsoft Partner Program.