I'm trying to set up a Slingbox Pro HD for the first time (it's been sitting unopened in my closet for several years). I hooked the device up to my cable box and network, but when I try to activate it through the Slingbox website I'm told I have to upgrade the software. When I try to do so, the upgrade gets to 25% and then stalls every time. I've tried resetting the box, reloading the pages, trying again later, but nothing works. I'd be happy to skip the upgrade if that's an option, but it doesn't seem to be. Anyone have a suggestion?