i have pm'ed realsportcars but i think i need to share my problem here with every one :$

tried installing it both ways with .deb file and from devel too but getting same problem .
i can see the icon but when i click on it , it doesn't open :$
tried from xterminal and got : permission denied :$
what could be the problem ?

i have categories plus installed .
is it conflicting ?