I've tried installing this both locally (Mac OS 10.4.10, PHP 5.0.5) and remotely (Linux, PHP 5.2.1) without any success. Locally, I am able to get through the setup pages until the "Finish" step where it tries to actually access the page. Then I get this error:

Safari can’t open the page “http://localhost/sitename/activecollab/”. The error was: “lost network connection” (NSURLErrorDomain:-1005)

When I try to install it remotely, I can't even access the install page. I get the following error:

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request. Your administrator may not have enabled CGI access for this directory.

I've tried CHMOD 0755, 0775 and 0777 with the same results. Any help would be CERTAINLY appreciated.

Thanks