Which is the most useful Kernel version for the BeagleBoard xM + Angstrom?

Hello guys,

i am new in the Beagle World and have some problems to decide which
Kernel i should use for my BBxM A2 an the Angstrom system. I built a
2.6.37 Kernel but there is no working sound, i cant change the system
language, only half cpu speed, no static mac etc.

Which one would be your choice?