I'm having trouble with the presets on my SL 100. I'll try to explain. While the SL 100 is in my car dock, sometimes when I press a button on the remote it changes the preset. For example I'll be listening to The Blend, preset 8. I press the 2 button on the remote to change the channel, and instead it changes the preset #2 to The Blend. Huh? I've tried to recreate this, but I can't get it to happen on purpose. It only happens maybe once every few weeks. I'm lost. Anybody else having the same trouble? Any suggestions?