No, this is nog a Frequently asked question. I've read the solution to this problem in the FAQ but that didn't work.
I'm not running Installer plugin (I don't even know what that is) and I also deleted the endline below the ?> in the cforms.php document. Didn't work either. I'm using Wordpress 2.3 with Stable tag: 5.51 cforms. It's fresh installed wordpress and this was the first plugin to activate. I got there with firefox and when I try to activate cforms I get a blank page.