I've been using W3 for about a week now and pretty much it's been working like a charm. So a big thanks!
One peculiar thing I have noticed just now though: When I browse through my categories some of the post images won't properly load, small icon images as well as big ones. This only happens with subsequent category pages e.g. "domain.com/category/xx/page/2" but never on the front page of the category (domain.com/category/xx). Also it only happens with images where the url says "../wp-content/gallery/xx.jpg" but not when its full like "domain.com/wp-content/gallery/xx.jpg". Now I suppose I could change every single url to the full structure but that would be a BIG pain in the neck as we're talking lots of posts and lots of images here. Isn't there a simpler solution, maybe something I can do in the W3 settings? What is this about anyway? I find this very strange.