Uncheck the 'check for visible doublets and triplets etc...' and 'hidden doublets and triplets etc...' for generator and solver from settings dialog. Speed increases more if you disable the show figures while solving and show console messages.
You need to run the program through terminal in linux. It wont work under windows in command prompt.
The screenshots are taken using Ubuntu, Gnome and industrial theme. In windows the program comes with wimp theme engine which makes the program as a native windows application. You can change the theme by relpacing the gtkrc in share/theme/default/Gtk-2.0 and installing required theme engine(if available for windows) in /lib/gtk-2.0/2.6.8/engines.
Use the online forum www.yzonesoft.com/forum or mail me at yzonesoft_AT_yahoo.com.
Please make a bug report on the online forum www.yzonesoft.com/forum or mail me at yzonesoft_AT_yahoo.com. It will be helpful to improve the software
The easter egg is hidden in the settings->settings->game. It reveals a new feature for two player game.
Post it on the forum(http://www.yzonesoft.com/forum). You can also email me(yogesh_AT_yzonesoft.com).