iPhone 3GS tethering crashing problem

Hi all,

I have an iPhone 3GS on a Vodafone NZ contract and I am having a problem with tethering via USB.

I do use tethering quite a bit with my Macbook as my University's proxy server makes it rather difficult to enjoy having internet access from every application on the laptop. I also have 3GB of monthly data, so may as well use it. It is a bit annoying however, as the iPhone's internet connection is only about 3-4Mbps where I live, but it's generally enough.

The problem, is that after about 30-45 mins of browsing (tethering), the iPhone crashes. It locks up, and I have to crash it by holding down both buttons. It also takes about 5 minutes to actually restart too. It just sits on the Apple logo.

What's going on? Anyone else find this problem?

Cheers
J

 

Actually, I have a question about doing a fresh install. I do have a backup of my iPhone (do it daily), but if I do this, will all my 'achievements' in my games be kept?