Bolero problem

has anyone else had this problem with the bolero, sometimes when i start the car, the bolero starts up and plays, but then 10 seconds later is reboots the display, but the sound doesnt stop playing, then when it comes back the media display has no title in it and it wont track skip (on sd card) turning it off then on or switching to radio and then back to media fixs it. any ideas would be helpful.