Gateway 310 X (310XSP) PC Desktop "little grandma" Questions

...little pin in the small hole... but when I contacted e-machine they said I need to put a new one in? Someone else told me I just need to re-dowload my drivers? I am not computer savey at all... my ...

little thing. It's a variation of the Micro-ATX form factor; and I'm thinking near the Micro-ITX form factor, http://en.wikipedia.org/wiki/Motherboard_form_factor#Tabular_information Has a PCI Express

...little grandma", the power button on the front no longer turns on the unit. If the power cord is unplugged, then plugged back in, both the red and green lights on the front illuminate for about 1.5 ...