bloginfo('url') misses to put a last '/' at the end of the url, because of that pages are not being corrected correctly. For example
http://www.someurl.com/myblogname will generate a next page like this:
http://www.someurl.com/myblogname/myblogname/page/2/
Yes, indeed: the blogname is doubled. That would never happen when bloginfo('url') would generate:
http://www.someurl.com/myblogname/
(with a '/' at the end)
To correct this I am adding '/' after the bloginfo('url') request, but this is not how it should work.