Reinstalling CF...Need some advise.

So, here my deal!

i turned my laptop on this morning and go "right, time to play CF!"

i open it and it wont let my play it, some error. So i download a new update for my graffics card, still doust open! so i am reinstalling it now.

so i am asking, incase this dousnt work, are there any good games that you would recomend that i can get on the internet FOR FREE?

Thanks for any replies.
PS. if you could provide a link to down load the game that would be snazzy! thanks!