HTC EVO 4G :: Rooted - Phone Shuts Down Whenever Use GPS

I recently rooted a 2.2 stock phone, using the XDA method (clockwork). Everything seems to work fine, except for two things: BIG THING: Whenever I try to use the GPS function on my phone the phone just shuts off and restarts. (this is when I use the GPS satellites function. NOT when I use the "use wireless networks" setting under the Location sub-section of settings) When I turn on GPS and try to get "my location" in google maps. It restarts. When I use Yelp it turns off.

SMALL thing: The wifi tether is decent but it often stops working (I used the google one). I.e. The computer that's connected to the wireless network either gets disconnected, or it thinks it's disconnected but the internet just doesn't work. At this point, I just simply shut the tether on and off. But it's slightly inconvenient. Is this an issue other people are having?