Till last week my T-mobile mda was working very fine but from last week it is working very slowly. Whenever I try to operate it I get fed up from that. I had already scanned my T-mobile for the viruses but no virus found. I had already restored it in the factory mode but my problem still exists. SO I want to ask this from you guys, why my T-mobile mda is working so slowly? What more I need to do?