Advertisements Ever since upgrading from Vista to Windows 7, I've been having problems and TivoDesktop 2.8 hasn't resolved the problem. Here's the run-down. When I install Tivo Desktop 2.7 or 2.8 to my system that was cleaned with TivoCleaner, the installer prompts me for my Media Access Key. I enter it. The install succeeds. At this point, I can view all my videos that I've transferred to my PC since it was Vista with Windows Media Player (WMP 12). Roxio can also view them. I try to connect to my 2 tivo's. No go. It complains that the Media Access Key isn't correct. I click on File/Set Media Access Key and it's not set. No red warning text. I set my MAK again. Now I can connect to both my Tivo's (I had to disable my Avast AntiVirus to be able to actually transfer a file though). But now, I can't view any of my videos using WMP. I get the dreaded C00D11B1 error. If I uninstall/clean/reinstall and enter the MAK during install, then I can see my vids again, but can't connect to my Tivos. It seems to me that there is a bug in the way that Tivo is storing the DRM encrytion data... I've called customer support and after 30 minutes, they told me to install a freeware codec (K-LITE2, which is actually a collection of codecs). I knew that this wouldn't help since my Tivo Plus codec works just fine with the installer's MAK applied... but I tried anyway... no change. Same behavior. Luckily I have an XP box in my basement which still works fine in every aspect... however, this is annoying. Anyone else seeing this behavior or has any suggestions? I tried exporting/importing the registry settings for the HKEY_CURRENT_USER\Software\TiVo\SharingKeys keys, but it had no affect.