Should I use GTK+ or even GUI ?

["jacky618 jacky618" <hhd618 hotmail com>]

Hi, 

   Recently I am writting a multi-thread program, which is a comunication 
application. 
In this program I need to display all received messages on a CList control. 
Because the messages are successive coming in, I have to remove the old 
messages in this CList control continuously.  However, after a few hours, 
the program will halt automatically with a error:

Xlib: unexpected async reply

I have spend much time to resolve this problem with little effect. So, I 
wonder whether I should use graphical interface to display those messages.

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