Indy 9 Frozen Application

I am using Madshi's MadExcept to troubleshoot an application of mine. I have been having trouble with an error stating that the application is frozen. This is happening when I am calling writebuffer on an Indy 9.0 TIDTCPServer

Here is what I am doing:

with FServer.Threads.LockList do
      try
      For x:=0 to FConnectionCount -1 do
        if TConnectionThreadData(TIdPeerThread(Items[x]).Data).SendToThisThread then
          TIdPeerThread(Items[x]).Connection.WriteBuffer(FSendBufferStream.Memory^,FSendBufferStream.Size,True);
      Finally
       FServer.Threads.UnLockList;
      end;



exception message : The application seems to be frozen.

main thread ($3b8):
77f82870 ntdll.dll                                    NtWaitForSingleObject
75031c5f WS2_32.DLL                                   send
00481952 ScreenCapAgent.exe IdStackWindows        316 TIdStackWindows.WSSend
00484e52 ScreenCapAgent.exe IdSocketHandle        153 TIdSocketHandle.Send
00489b21 ScreenCapAgent.exe IdIOHandlerSocket     233 TIdIOHandlerSocket.Send
004885d5 ScreenCapAgent.exe IdTCPConnection       786 TIdTCPConnection.WriteBuffer


I am at a loss on this one. HELP!!