Plus according to the mobility radeon and core duo specs, I would say he is using a LAPTOP.
I would say Crysis would just plain and simple not run. You might get the menu to load but that is about all. You really need GOOD midrange card to even make Crysis playable. It is made for hardware what will be avaliable 1 year from now. not 2 years ago.
Just play FarCry. has the same soul as Crysis and plays on "mainstream" systems just fine,.
If you're still having trouble, you can always play DOOM.
Or Wizardry for the Apple ][.
Maybe Dungeon for the Commodore Pet. Dungeon for the IBM system 360. (enough...)
Why does everyone alwyas say it looks so poor on low settings? It really.. REALLY does look good even on low. Go look at some screens compared to other games if you wnat, low on crysis is like medium on most other games.