On one of my Touchpads, I installed the August 8, 2013 build of CM10.1, the one with the working BT for the keyboard. Did the BT keyboard just not work with previous versions? On a TP I just revived, I installed CM10 12/16/2012. In some ways, I like it better than the 8/8/2013 build. I think Colchiro commented that it was a little under-resourced to run the more recent build. Just wondering, can you "downgrade" CM versions? I think the older one runs better, but I'm a bit on the fence since I do have an HP Keyboard. I'm also wondering, is there another build post-8/8/2013 that uses less resources and is more responsive that would be recommended? Comments / advice most welcome.