Problem with connecting to network

Hi, I have recently purchased a SIM card. When I use the SIM in Nokia 3310, and try to manually select a particular cell, it says no access. SIM belongs to the same network. If I insert the same SIM in Blackberry Bold 9780, I am able to manually select the same network and even make phone calls. I have set the Network selection mode in Blackberry to Manual. I have also asked it connect only to 2G networks. To debug the issue, I connected the Nokia 3310 to my laptop and observed the messages it exchanged with the network. From the messages, I see that Nokia 3310 is getting a TIMSI assigned from the same cell. But my Nokia 3310 says, No Access. I also see a "DTAP Radio Resources Management Message Type: Channel Release (0x0d)" message from the Network to the phone. What does the above message mean ? Is there any way for me to further debug the issue ? Thanks and Regards, RM