3. I cannot enter anything into the Product Activation Code fieldup Such a situation may occur if a non-default text size (DPI) is used. In this case please restore the default size (100%).
"If the size of text (DPI) has been increased in the system settings then problems with the Configurator might occur such as flashing buttons, buttons overlapping each other etc.
If these problems occur, please return to the standard text size. Windows XP Rightclick on the desktop -> Select Properties -> Choose Display Settings Click Advanced. In General tab in DPI setting menu select Normal size (96 DPI)
Windows Vista/7 Open menu Start -> Go to the Control Panel -> Then to Appearance and Personalization - Display Settings. From text size options select Smaller - 100% (default) Save the changes"