Middle mouse button

[ltsang]

Hi. When I pushed the middle mouse the screen turned small. This happens when I'm using my button on the mouse in the middle between the first and the second mouse button. Does anyone know how to get rid of it? It also effects my game. Here is a small sample:

I'm currently using window xp on this computer. Can anyone help me? Thank you.

 

[KSoD]

Check your mouse software and find out what the middle button is set to and change it. That is very specific to your mouse software.