Count me in on the reboot problem. I have a xl4 activated on 5/14. Had 2 reboots. Once when watching live tv with no recordings happening. Picture froze and then rebooted. Another time picture froze and unit became unresponsive had to pull plug. Both time called support and we went thru all the diag screens. Found my SNR on my signal to be a little high but other than that nothing. Getting a rma box today. BTW no extender or slide remote.