I was going to try installing the Zend Optimizer tonight because it apparently does a better job than the basic optimizer in eaccelerator and works well with eaccelerator's opcode cache. Since I already have zend opt. in the apache setup I am leaving dormant on my server, do I have to worry about any kind of file placement conflict? Will I be able to have two copies on the disk, one for Apache's php and one for LiteSpeed's php? Thanks for any feedback.