I'll keep fiddling with it, but I've no idea where to start looking. The cart itself is just about virgin, its not an upgrade except for the db, which I dont think should have any effect. There are a few mods, but the Aust post module is the only truly invasive one, the others are aesthetic like IH2 or the grid mod then theres the the google site map and froogle feeder neither of which overwrite any shop files.

Can u show me the best .htaccess? I've seen a few around and figure that might be the go.

thanks