FPS Games on Acer Aspire One

I own a AOD150. I use windows XP SP3 Home Edition

I tried two of these free fps shooters - Solution would be appreciated
Operation 7 - Wouldn't run, gives me a error "Could not create Main Application" or something like that
Soldier Front - Wouldn't run, gives me a error "Can't multiple instants of the game (4)"

Battlefield 2 Demo wouldn't even run, gives me a black screen and bam im back to the desktop.
I'd really like to get this demo running, would be nice if i got a solution.

There are other free fps games I'd like to try.

This is the list, could i know which ones work?

GunZ
S4 League
Combat Arms
Black Shot
Warrock
Crossfire (I hate this game just want to know if it works)
World of Padman

IF you have any other good games you could recommend please list them down

 

guns and s4 league run flawlessly the others ill have to have a look

 

I would just buy some games and see what this AAO can do. The best free game to me is Hidden and Dangerous.

 

The AAO's graphics could in no way handle BF2. If someone gets it running at a playable clip I'd love to know about it.