No, I have not found a solution. As I keep reading more and more posts though it seems as this is a problem for a lot of people. My guess is that it has something to do with the way the network is set up.
Actually, I did notice that on my connections screen if I have at least one protocol that is 0.4 then my downloads are fine, but if all my connections are Ultrapeer than I can't download worth jack.
This has to be a software problem. FIX IT!