change the theme?
Could this be the issue?
Control Panel
under Appearance and Personalisation heading
Change the Theme
There are pre-canned themes or you can change the details on your own.
It looks like this in the address bar "Control Panel\Appearance and Personalization\Personalization"
Obviously this stuff now moves about with every different version of windows. I am on Windows 7.
Also perhaps check that the screen resolution is set to the actual resolution of your screen which seems to be 1600x900.