Garbage characters when using W3 Total Cache

Hello,

I’m using wordpress 2.9.1 with w3 total cache and it’s working great so far. However, from time to time, some of my posts appear with garbage characters or question marks instead of text. Clearing the disk cache resolves this.

I’ve read in the faq the following:

I see garbage characters instead of the normal web site, what’s going on here?

If a theme or it’s files use the call php_flush() or function flush() that will interfere with the plugins normal operation; making the plugin send cached files before essential operations have finished. The flush() call is no longer necessary and should be removed.

I have double checked my theme and I couldn’t find any reference to flush functions. Maybe searching for the flush string wasn’t the right thing to do? I hope someone can help me with this one, because other than that this plugin rocks! I’m using a slightly modified version of the popular arthemia theme.

Thanks,
krko