I've seen a lot of posts about this issue but unfortunately none of the solutions offered worked for me.
I have a Sony VAIO VPC laptop, Windows 7 Ultimate 32bit.
Everything was fine until yesterday when I opened my computer and the taskbar now looks like this:
when it should look like this:
I ran the Aero troubleshooter and the report says my Desktop Window Manager is disabled. I tried turning it on in the Services window but nothing happened. It also said that the current theme doesn't support Aero, and nothing happened when I changed the theme back to the default Aero theme.
I also updated my Intel GMA 3150 driver. again, nothing's changed.
This is extremely frustrating, any help would be appreciated.