Black Box over Controls?? Help Please

Question

Hi, I've just started programming with C# and really I've been getting into Windows Form Development with Microsoft's Visual C# 2003. I am also a C++ programmer, but my question pertains to Forms. I've been building an app, and when I have 1 control on a form (ie. a Button, or a label), it looks fine. But when I have multiple controls, black boxes appear over them until I change their value or I rollover them or something. It's really annoying and I have no idea what it is. I am using Application.EnableVisualStyles() in the Main function, but I tried it without that and I got the same results. Here's an image of what I'm talking about: http://www.takeitfromthetop.biz/form.jpg 1 & 2: Black Boxes overlay the controls because they have not been rooledover or changed 3: The Radio Button is activated because I rolled over it 4: The button is activated because it was moved. Thanks for the Help!