I have been using a unlocked HTC Touch Pro with no problems at all, everything worked.

I tried to use internet sharing through my laptop and got the "Remote party ended connection" which I found out later was because I needed to delete a registry key from AT&T.

Now ever since then when I try to use the internet I get gateway timeout error 504

My email and Exchange activesync work perfectly, but the apps that use the web do not work.

I can get online through internet sharing on my laptop, oddly enough.

I even can get online with my unlocked Iphone

I did a hard reset on the Touch Pro and set the settings back up, but still get gateway timeout error 504

Tech support was no help

Anyone know what is going on???