I have started having a very annoying issue with my Droid X. Almost without fail, while I am working out listening to MP3s the screen goes black and is unresponsive. The other day the light was just right and I was (barely) able to see the droid "eye" indicating a reboot. This happens with both iSyncr and the stock music player. I use the one-tap cache cleaner occasionally and recently did a boot to the service menu and cleared the system cache. One other thing I have noted recently that just started is that my Dolphin HD browser is very sluggish at times. I do a shutdown and battery pull fairly often. I am running stock GB, not rooted. Any help would be greatly appreciated.