GSM Modem - Help Badly Needed

Hi guys!

I'm sorry to ask for help but I'm totally pi**** off with this GSM Modem. I'm trying to create a gateway application for my GSM Modem that continuously process messages. Im having problems when the modem received a +CMTI: "SM" command. As for those knowledgeable, I think you already know that this command is received by the PC from the modem to indicate new messages on the modem. I want to disable this so that I won't receive any +CMTI during OnComm(). Is it possible? I badly need to solve this issue because I'm way overdue with my deadline. And I think my head is going to be cut if I don't finish this within the next few days. Thanks in advance. I know someone can help me. I already tried searching here and on Google. I find nothing. Thank you.