MythTV not going fullscreen in Ubuntu 11.04 (Natty Narwhal)

Recently I started upgrading my various MythTV front-end machines to Ubuntu 11.04. I was disappointed to discover that the unity bar at the top of the screen is still there.

In previous version of Ubuntu this would happen if you had the Appearance setting on anything other than basic (I forget exactly what it was called, but it was the first option in the last tab in the Appearance settings application).

However in 11.04 the Appearance settings application no longer has this options (this appears to be due to 11.04 using the Compiz window manage if it's available).

This is apparently a well known issue, but luckily the fix is fairly simple. From here I discovered that it's just a case of installing the advanced appearance settings application (called CCSM) and selecting Utility->Workaround->Legacy Fullscreen Support.

Quite what this workaround breaks and therefore why it isn't on by default isn't mentioned anywhere, but I'm happy for now as I can still watch TV.