I have installed DT Register and JEvents to test out on my local laptop running Vista and Xampp etc. before adding the capabilities to a live site.
I can set up some Categories and Custom Fields etc okay but then when I select Configuration, the browser screen/window goes blank. This happens with IE and Google Chrome browsers.
This would been related to something in your local configuration. Not exactly sure what. I know that you would not have an issue like this on a live server. If people were having this problem on live sites, we'd know... trust me
We're out the next couple of days for the holiday, but let us know what you come across with this... shoot us some more details... and we'll see if we can help point you towards a solution.