i had mine working the other day on my laptop, but my IE 11 settings got defaulted (damn teenagers). i was very excited too because i had windows vista (i forget which version of IE i was using...9 i think) but my files would disappear too. i was able to click the playback tab at the top of the screen, select the dates i wanted to download, click query, choose which times i wanted to save, save as an AVI file to a folder of my choosing on my laptop, then open it with VCL player, and i was in business. WAS...i dont know why it stopped after i changed the settings back. when i click the query button now it just says failed or it shust down IE. i still have the desktop with vista, im gonna try the right click trick. then im gonna try rebooting the DVR and the laptop and anything else i can reboot. very frustrating when something worked perfectly...then it stops.