I have a forum with every one of your mods like:
advanced SEO urls
I have also a big problem. Google really like my pages but when I check the Google Webmaster Tools I see that Google get's 404 error messeage on EVERY topic in my forum. This is very annoying since not even ONE correct url has been indexed because of this huge problem.
I have checked everything (I think) and don't come much longer in this case. What do you think this could be? Why does Google get 404 when ...