Have you installed any new software lately or added any new hardware? Anything at all along those lines?
What OS are you running? Have you tried using the Disk Utility found in the Utilities folder? For more information on the maintenance of your machine, check out this link to another discussion in this forum.
Hope this helps
HI, I`m a newbie, I got an emac with 1 giga and 640 megas of ram, my problem is that lately it has been kind of slow, it takes forever to boot up, and is a little slow while surfing the internet in a DSL connection, I don`t know maybe I need to give it some maintenance? How can i make my mac go back to work as good as it was some weeks ago?