Ok guys I don't know how to explain much of my problems but i can describe them sorry is just my way of organizing a sentence.-Fir's i use to play a game call Saurbraten on my Computer-* Even though it lagged every 20minutes* , and This is in windows vista. By the way i installed minecraft and i have 1.5GB RAM but is still lagged a little to much I heard that the graphics is not the part that is loading that much but something else rendering?Ok windows 7- i Upgraded yesterday, and i tried playing saurbraten it lags all the time can't move the mouse right etc....when i tried to play minecraft it said you need to update your graphics card i went to my Computer Properties device manager graphics and pressed update and Im in the latest version i also checked Direct X i have latest version (11)So i don't know what is happening help...BTW i got ubuntu can i run these things on that OS?