Sorry, I need to clarify.
About a week ago, when I still had my original EVO I called Sprint and tried to resolve this problem with them. I actually told him about your post and requested that we check the proxy settings. That's when we went into the proxy settings to comfirm that they were all cleared. And they were--I never changed the proxy settings on my original EVO; they were already cleared when we checked them. All I know is that it worked until about two months ago, then it stopped. The Sprint techs's next step was going to be a phone reset, but I told him nevermind because I was upgrading to the LTE. I have not checked the proxy settings on this phone, but I'm getting the exact same behavior from this phone that I got from my origianl EVO and it did not have proxies set.