Problem with Megawizard plug-in manager

Yesterday I instaled QII 8.0 , as I use the Megawizard plug-in manager, I found its font was too small, I can hardly see the words on it. Then I turned to QII9.1, still the same problem.

The other parts of QII was good, and I am using a trial version QII in the win 7 OS.

How can I fix this bug?:confused: Please help me.