Sprint Treo 700wx Issues

[emd2009]

After about a month of usage, my Sprint Treo 700wx is misbehaving. It freezes frequently, causing me to do a soft reset. I tried doing a hard restore, it helped some, but it still locks up every once in a while.

I've been tethering with it also, and I've tried USBModem and PDANet.
With USBModem, i get disconnected after about an hour and when I receive txt msgm the treo locks up. I'm averaging about 60 kbps, is there anything I can do to make this better?

With PDANet, not only is the the speed is not on par with the first method, but it freezes my treo after about 15 minutes. Is there a solution for this?