Buying from an individual means that you have little recourse if something goes wrong. The following tips should help you buy carefully:

• Take someone who knows computers with you.
• Turn the computer on and off a few times to make sure there are no problems with start up.
• Turn the computer off and look for screen burn-in, a ghost image on the screen after the computer has been turned off. It can indicate misuse.
• Use the computer. Use the software you plan on using. Listen for strange sounds when you insert the disc.
• Ask about the warranty. Some companies (Apple, IBM) permit warranties to be transferred from one owner to another. A new owner can usually have the warranty extended for a fee.