I've had my cw4000 running for years. Everything works great except for the Media Not Available msg I get it whenever I use the app exit button on the remote(if the receiver has been on for a few hours), when escaping the satellite. I then have to go into putty, and use the shutdown.sh command.. I've tried factory resets, recovery disks, etc. Been there, done that..... I'm using the 2.1.0.1.17 file. I've got a 750gb HDD in it, and I've upgraded to 4GB RAM(channels change faster than OEM receiver after your cache builds). Any ideas?