I tried three times to install bbPress. Each time the install goes fine, then when I click "activate" the screen goes white, and nothing else happens. I come out and go back in, and the wp-admin functions are not there - all that appears is a white screen.
I tried this with two different hosting companies, BlueHost and Hostgator. WP was installed by Fantastico script on both. I tried several times on each. Used the automatic searc h/install on BlueHost, uploaded the zip file on hostgator.
Would love to use the plug in, but it obviously has issues.... it destroyed the site. I had to COMPLETELY delete and re-install WordPress, and start over again.