I installed RoundCube on the server. When I accessed the dir, I see a blank webpage. What is wrong with it?

URL that has webmail: http://alossoft.x10hosting.com/wm/wm1/

Have you followed the instructions found at http://trac.roundcube.net/trac.cgi/wiki/Howto_Install.

Gary

I saw the same thing, looked in the error log, and saw the function is_a() was undefined. Turns out this function is in PHP 4.2 or later, and I was running 4.1.2.

So, make sure you have PHP 4.2

Hello,
I see a blank webpage too

In the error log I found:
"PHP Fatal error: Call to undefined method DB::assertextension() in /usr/lib/php/DB/mysql.php on line 114"

Any ideas?

Apache version 1.3.37 (Unix)
PHP version 5.1.5
MySQL version 4.1.21-standard-log