I just unlocked a T mobile Samsung SGH-T259, and using with my att sim card. But, I have a few issues. Every time I delete a voicemail, I then recieve a text msg with just a triangle in the from field, and the voicemail icon will not go away. Any suggestions? Also, I am unable to access the internet. I get a msgthat says "service unavailable". and lastly, I am unable to send picture mail. Can anyone help with any of these issues. Thanks.