newbie : desktop mode button grey-ed out *help*

[Shouryu]

Just wondering if my system is not powerful enough or I don't have the correct version or something.

1. Everytime I open a file i get an "overlay fail" error message.
2. Alot of the functions are grey-ed out which means I cannot click on them to activate the function such as the Desktop Mode (is about the only reason why I downloaded this program)