You don't get the fader slider on the 'home" setting but only in the "car" setting.

The reason this is happening is because you have applied his 2.0b3 kernel atop your 2.0b5 interim alpha-team build.

Mark is not on the alpha team and is therefore unaware that the behavior of the sound options is changing (fader is removed from home mode cycle).

This is a nice heads-up for Mark for when the next public release of the 2.0 code happens, though. I hope somebody's ready to tweak his kernel as new betas are released while he's away this month.