I have the same problem. Downloaded update 3.3.3 from the market place (PC version) and the mixture controls no longer work (Honeycomb Bravo or mouse drag). Very annoying, as there is no way to roll back to a working version. I tried the various PMS50 versions and the GNS530 versions - same result. I thought that this release passed the Beta test phase - what the hell were you using, an X-Box? I echo CoolGunS sentiment - do not upgrade to 3.3.3 until this debacle is sorted out.