Aero and screen resolution

Using Vista premium on my dell 1530 laptop with screen resolution at 1920 x

1200. When using Vista basic, everything is perfect. However, with Aero on,

browsers still at 1920 x 1200 but certain pop up boxes are clearly not at

1920 x 1200. Pop up boxes such as opening firewall menu, spybot program.

Not all pop up boxes are at lower resolution. For example, when I open up

network connection status box, it is at good resolution however, when I go

further and his properties box, clearly at lower resolution. Does anyone

have any idea what the problem is? thanks in advance.