hello, maybe it`s too late, but google for "Enable Button v.1.1" by MaximK, download it, run it, it`s a small exe, put it in the background and open presto pvr, go to settings, video tab, wait a few seconds 2-3 and you will see that the image controls are enable now, scroll them untill you can see a clear image. ! Good luck !try this link for the Enablebutton software
http://www.sharemania.ru/0160463
