External Lcd On T43 How To Add An External Monitor To An IBM Thinkpad T43?

How to add an external monitor to an IBM Thinkpad T43? - external lcd on t43

I bought an Acer 22 "LCD monitor, and I put my ThinkPad T43 (Windows XP) screen can be divided into two screens. I installed correctly and display properties seems that there are two screens, but in the new monitor with the words" No signal "and I can not imagine doing anything else.