I recently had my SP1.7 repaired by PMC as the LCD panel failed, at the same time I asked them to investigate the odd instance when the unit would simply stop responding to the remote, however using the buttons still worked, and switching to standby and back on worked.
PMC couldn't reproduce this problem which wasn't that surprising since it was only happening to me once a week or so; however it has recently started getting worse i.e. now it can be once or twice a day, but very variable, it generally seems to be if it hasn't actually been used for a couple of hours (I often leave the unit on if I know it's going to be used an hour or two later0 it never stops working when in use.
Anyone any ideas or is it a matter of waiting for it to get a lot worse before returning.
Thanks
Slingshot