I just bought an iMac g3 approx ~8 years old from a friend for $20. I'm using it for the kids to tool around with. Everything works great, except that when they play internet games of watching internet based videos, its slows up. I'm trying to find out if upgrading the ram will help solve this problem (currently has 192mb of RAM) or is a video card issue. I'm running OS X. This is the first time I'm using a mac :Thanks for any suggestions.