I've had the same sorts of issues, but despite the options in the link, (except for changing the registry, which I haven't tried), not one is possible.
The Configuration panel I now have is now just a series of large blue icons with grey writing on a white background. Completely different from what it was just a week ago before the upgrades started. When I open the System icon, it only has options for the screen and not the tower mode. OK, so it's in Spanish, but I don't suppose that makes any difference?
Fortunately, I was able to select the right resolution size for the screen, even though it still states that 1024 x 768 is recommended and I've had to manually change it to 1280 x 1024.
As just a mere user I'm fed up with forking out for someone to correct these technical issues each time they go wrong. Some product when it autocorrupts during updates!
There's a specific driver advertised on the web for the screen I have, but would this fix the Sleep and Control Panel issues?
Any ideas? Thanks in advance,