preview shows a bunch of black and purple

[Lamina]

the problems you describe don't sound familiar with any of the pre define view styles they have available in Home Designer produts. Could you attach a screen shot of the problem?

My first guess? sounds like a display problem updating the video card drivers sometimes helps.

I'd compare your system specs with the system requirements. http://www.homedesignersoftware.com/products/system-requirements.html

What version of the software do you have?