joint ops help???

[potterslife]

hello gamers new to site and gaming, have to questions.

1. do you need to complete all the training missions to start an actual game. can't seem to play the game or is this strictly a multi player game?

2. i had to install a new video card (geforce5200 apg) it let the game load and run but when i log on to my server(aol) all of my desktop icons are larger than before and so are the windows once connected to the internet. how do i make everything smaller? can someone help?

thanks scott