i have the full copy of BF2 but for some reason it doesnt work on my better comp when i install it it sets up the install shield wizard then the screen flahes and nothing happens (this computer is powerfull enough to run the game) and on my other comp (also powerfull enough) i install it then i get to the point where i choose me class and sqaud but the mouse freezes up in the middle so i was wondering if it is possible for me to play and represent the clanon the demo (which works fine). i will be getting BF2142 the full version

We never play using the demo so unfortunately this won't be possible. You might be able to get help at a bigger BF2 website like www.totalbf2.com.