Okay, so the previous code has been rectified...
I installed two free games from the app store. I tried to get them from online but for some reason the pages they were from weren't loading up correctly, making it really hard to find the download link! (Might be an OS issue?) Either way both of the games from the app store seemed to work perfectly. Both had good graphics and were smooth. with very cheesy music also
I also tried the chess board that's preinstalled on the mac. That also worked flawlessly, apart from the fact I couldn't beat the damn thing!
I'm not one for delving deep into coding as I've never really done it before. just finding the terminal is hard enough as it is! But if it needs doing then i'd give it a go!
Any other suggestions? I'm err-ing on updating the OS as if I do, I can't go back! Maybe go halfway and get a sightly newer OS but not fully up to date?