I recently got a CW800S. Anybody else having problems getting the PVR function to work? Already uploaded latest bin file dated oct-23. I put in a SanDisk Micro 4GB USB pendrive formatted to FAT32 and if I hit pause or rewind the box freezes and I have to turn it off and on. Can't record anything. I've heard there's also problems with a lot of external hard drives. Any thoughts?