Yes: Go to Possible Causes
No: Please contact TiVo Customer Support for assistance.
Plasma TVs placed too close to the IR Receiver of the DVR can cause issues which prevent the IR commands from being properly received by the DVR. Move the DVR away from the TV and try again.
Certain LCD TV backlights can cause IR interference which prevents IR commands from reaching the DVR. Some televisions have features or settings that modify the backlight levels and can create IR interference. Examples include: Energy Saving settings or auto dimming features which adjusts the backlight settings based on ambient light. Check your TV settings to see if any of these settings are active. If so, disable it or try modifying the backlight setting manually to a higher or lower level until the DVR is able to respond.
Haven't tried if it works yet, but that sucks big time