Ok so i have Windows 7 ultimate and i can handle it requirements. However, the desktop background slide show does not work for me. I will click on my pictures, select those i want, change it to a minute and shuffle and nothing it remains on the first picture clicked. I have check that power management is set to Available. I do not have any VNC or that i know of. I install Windows 7 ultimate yesterday so i have done very little with it. heck i dont have much install with it. Everything else is running fine but i cant seem to understand how come my slide show does not work.
I had a similar issue a few weeks back and it was down to tuneup utillities when it optimized my system it turned off the slideshow function. If you dont have any tuneup software on your system you might want to try this Control Panel>Power Options and make sure the slide show is enabled in the advanced options.