Display problems

My 4150 is set at 1024 X 768. The problem is this. I am an insurance agent, and run many insurance software programs to do rates with in my laptop. I just got a new program, and when the laptop is in my docking station, it displays without any problem on my 19" monitor. The problem is when I pull the laptop out of the dock, and try to use it at the office of a client, the calcualtion entry screen on this particular program is unreadable because it is all scrunched up. I called the tech support guy at the insurance company, and he suggested I lower my resolution to something lower. I tried that, and it made no difference. It is still scrunched up. Any idea what I need to change to get this to work. He said it had only happened on a couple of agents computers, but he did not know what to do. Any suggestions would be appreciated