Couple of weeks ago I disabled the screensaver on my new Vista 64bit machine because it was popping up when I was installing XP into VMware virtual machine. Yesterday I enabled it again and this morning I realized that it wasn't kicking in at all. I had it set to show my photos and to show up after 5 minutes of inactivity. The preview worked fine, but the screensaver did not kick in at all.
I started digging around and found that this is caused by incompatability between the IntelliPoint driver and Vista. Well, last week I had installed a Microsoft Wireless Notebook Optical Mouse 4000, which I now use on all my computers (I LOVE that mouse!) and the IntelliPoint driver that came with it.
After some searching, I found a knowledgebase article on the Microsoft website suggested to check for updates and install a "Microsoft HID Non-User Input Data Filter" update. So I did and the update was there and I updated the Vista64 with it. That completely fixed the screen saver.
If your screensaver stops working on Vista or Vista 64, check out if you need this update! Hope this helps someone:)
--Arnor Baldvinsson
