mod_deflate problems

So, I had apache2 configured globally with mod_deflate as such:

AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript

... which was working fine.

However, when doing a test deployment of an application I'm working on for work, FF3 didn't like what Catalyst was sending back for my login page (which works fine in Safari).

A quick fix was to temporarily disable it. Of course, one noticeable thing is that the web application I'm writing feels much faster without it on. I suspect this is mostly due to the relatively slow CPUs on the geeklair.net machine. This plus the fact that the server isn't bandwidth constrained at all probably makes mod_deflate a bad idea (or at least a bad idea to be globally active).

I may re-enable it for some portions of the stuff that is being served (perhaps most of the vhosts and the geeklair.net main site + blogs). For now, though, it's disabled.