Hi there,

I´ve done a little space-invaders clone as well as a pong clone. I am facing to problems here.

I´ve tested both of the games on the same pc I´ve programmed them. It´s a Pentium 4 HT 3.6GHz, 1.5 GB RAM, Windows vista. They work fine, fast and the game screen has the size it should has.

I´ve sent the games to some friends and some of them reported that the game screen looks strange, like it´s smaller than it should be. Besides the games are very slow.

I have tested the games on my notebook (Turion X2-64 2.0 GHZ, 2 GB RAM, windows vista) and I got the same problems... the game screen is smaller than the video_mode I´ve set (800X600 runs like 640x480 and the game makes no sense)

What should I try?
I can email the published games for you guys to take a look at the codes...