My phone will no longer connect to any of my computers, I have 2 windows 8 computers, one with motocast, one with just motorola device manager, and a windows XP machine with motocast. None of the computers recognize my phone when I plug it in. I am using the cable that came with my phone, the same one I have always used with no issues. I have USB mass storage mode checked, and I have tried the other two modes and neither one of those work either. I also have USB debugging active/checked. Does any one have any suggestions of what I can try to solve this?