I have a Slingbox 500 connected to a Pace PX001DNT Tivo DVR. I can view the Slingbox on all devices remotely but am unable to control it at all. No channel up and down, volume, guide, etc. The ir emitter is connected correctly and doesn't seem to make a difference. The PX001DNT is not listed in the supported devices on Sling's setup so I'm not sure if there is another model that should be used in place of it. I have doubts that this is the problem though. Does anybody else have any knowledge of this problem? Thanks for your help in advance!