Yes... I've seen something similar over the past couple days on firstbase, using Internet Explorer running on Vista as well as Windows 2000. When you click on the "2008" button, nothing shows up.
Fortunately most of the parts are available in the 2007 file, which is available, but it has been rather inconvenient at times when demonstrating how powerful the vitural KOP/Inventor combination is to be left without parts.
And just to further suggest that this is a problem on the website side of things... I was able to download most of the 2008 KOP from the Firstbase website last week using one of the same computers that shows nothing now.
(edit: just checked the site and it seems the 2008 KOP is back on-line... must have been a temporary glitch, but it did happen.)
(Further edit... does anyone know why the RC, Victors and Spikes aren't included under the "control system" category at firstbase? All I can find there is the backup battery. Maybe it is just assumed that everyone is using the models from
www.firstcadlibrary.com.)
Jason