Hi All, I currently run a phpBB site using phpBB v. 2.0.22 and PHP4. We'd like to install either APC or eaccelerator to speed up the site's performance. I'm not sure whether we should choose APC or eaccelerator since I'm a newbie to PHP caching. Which do you think is better - APC or eacclerator? Here are some criteria that I'd like to use in evaluating APC vs. eacclerator: 1) compatibility, 2) stability and 3) speed. Some older posts on the net (from 2006) complained about incompatibilities between APC/eacclerator and phpBB and about crashes of APC/eacclerator. I'm hoping that these problems have been cleared up by now. Thanks for your help! David