Just Moved - 1 mile out of Sprint coverage - options?

[xxxjdoggxxx]

I just moved today and one minute my phone has a strong signal the next it either has no bars or goes to roaming. I checked the coverage map on Sprint's website and it looks like I am about 1 mile out of their coverage area. I am not having much trouble making calls but am having trouble holding a EVDO connection. It keeps switching between EV and 1x. I need the EVDO because I am using it to tether and it is my only internet connection until I can get cable or dsl hooked up. I tried the reg edit to force EVDO and I actually get a decent connection for about 5 minutes then it goes to local only and I have to disconnect and reconnect to get back online. Anyone have any ideas? If I call Sprint can they do anything about it (of course I won't mention I am tethering)? btw a friend of mine lives a couple miles away and I get a perfect connection at his house.