I've had DirecTV + a Hughes SD-DVR40 DirecTivo for a few years now. Lately, whenever I try to access menus via the Tivo button, it takes a several seconds before the menu appears, and then any actions (up,down,enter,etc.) either take several minutes each, or it will just perform one action, then freeze for 5 minutes and then reboot. Sometimes my Now Playing List will take a long time to register navigation commands too, but it hasn't yet frozen up completely and rebooted. So, luckily, recording and watching recorded programs isn't a problem (other than extremely slow menu navigation once in a while). I've already cleared Thumb options, so not sure what to do next. Get a new unit? Get a new hard drive?