My OS is Windows Vista. Windows Vista has a "snipping tool".

1) When the bonus is complete, I click on the snipping tool which I keep in my tool bar quick start menu. But can otherwise be found in the programs menu under accessories.

2) After I click on the snipping tool, I click on the top of the casino window.

3) The picture of the game opens in a new window.

4) I click file "top left" then "save as" type in "whatever" then click save.

There you have a nice big screen shot. Very easy! Let me know if you can do it this way. : )