i upgraded to .90 a week ago and worked great until the last few days its started to fail lol. so i downgraded last night back to .76. i went to listen to music with my headphones(plug in style not bluetooth) and sound only came over the speakerphone. i clicked the BB button and the only options i had were to use speaker phone and handset. so after getting right fired up i put .90 back on and it works now......i'll give .90 another whirl but i wouldn't mind going back to .76 until another official release. if anyone as any insight as to what may be happening here that would be greatly appreciated.