Nothing, huh? Anyone else experiencing this?? I have had 4 wireless cards replaced by Dell home service under my warranty, and 2 motherboards...system still intermittently freezes while in screen saver, while online, and while attempting to sleep. My only recourse at the moment is to toggle off the wireless card every time I leave the system for more than 5 minutes. At times, even turning off all idle power options (screen saver, dim, sleep, etc.) the system will lock up with no power saving setting selected. It locks up more often while sitting there with no programs running than it does when I'm online.
I have done much troubleshooting with Dell and it is a solid confirmation that it is the wireless card. Intel, please fix your piece of crap card or issue a replacement card that doesn't lock up while it's doing nothing.