Hi, I am trying to get a second opinion on one of my parents' computer. It is a Sony Vaio Desktop made in 2001. It's core is clocked at only 866mhz, has 384mb ram (sdram pc 133), and an ASUS motherboard CUSL-LV with 3 pci slots and one agp slot (speed unknown). Should I get a new pentium 4 chip for the computer or a new computer in general? Note that the computer is used for email and internet use only. I know the computer is old, but the case looks new, and the low speed is the only problem we're having problems with.