do I uninstall the preview or do I just install the paid version over the preview version.
I have found that it is best to uninstall the preview before installing the full version.
does running DeskScapes take up much resources or memory
It's considering the dream that your running and how it was made.
The dynamic dreams take the least amount of resourses since the video card does most of the work.
For the most part, Stardock is the only ones that are making dynamic dreams since the SDK for them has yet to be released to the public.
The other type of dreams are video based and there are two types of these. If they are created with a mpeg video, they will take less resourses than one created with wmv video. Also, things like frame rate, bit rate and resolution of the mpeg will change the amount of resourses that are used. Due to this, most of the ones I have seen are made with mpegs. Personally, all of mine are mpeg files.