I got my 6220c from saudi arabia and am currently using it in Pakistan. It sometimes restarts when interrupted (even if not) by a sms or if I go to the phone menu while I am browsing through a application or using any other internet required app. What is the problem? It only happens when I am using internet apps. I flashed it. But it still does it. Really worried. Please help.

Omaid Khan, November 2010