Hey guys, Okay so here's the problem. When I try to insert my T-Mobile SIM Card on to the Samsung SGH-D807, it doesn't go all the way in. My hypothesis is that the ridges on the side of the T-Mobile SIM Card don't match the AT&T Card. Is that the reason? If so, should I try altering the ridges so it'll fit? Thanks in advance for your help -shadowpwner