My old MAC g4 power pc is doing some wierd stuff i am suspecting a faulty RAM chip. My computer is 4 years old. Anyways my MAC started to have problems running even MSN messanger or now you cant even play games cause it says not enough RAM memory is available. Wich before it could play every game we had just fine. Now we can barely get on the internet and cant even open up 2 windows in the explorer. We even reinstalled and formatted the MAC. Any suggestions? The mac has 64 mb's of RAM.