Emachines was horrible and always will be. The skimp everywhere they can, and the general build quality sucks. But many people that buy them don't know this, they just think it's an awesome deal on a PC sitting next to an identical one selling for $400-500 more, and they buy it. I know because I was in the same situation a few years ago - bought a Celeron 466 machine with a 4GB drive and 32MB RAM.
I reformatted about twice per month out of necessity, and one time I set a record and was forced to reformat 3 times in one day before it would work right.

Can anyone top that?
The system came with Win98se, a restore disc with a bunch of crap I have to delete every time I reinstalled. Mobo was a 2-PCI/2-ISA slot job, the HSF was cheap and started to make a slight grinding sound later on in it's years. Eventually the modem began going out, and I had an issue where it wouldn't dial-up without having 2 copies of the modem installed and use the second one. Now it fails to work completely, but I have DSL anyways. (I won't buy another Connexant modem again if I'm setting up someone with 56k.)
My freind's mom also bought him an eMachines, against my strong word that I highly recommend going with someone else. Then they did the unthinkable and bought a second one for his brother. To shorten up a story, that rig caused him much trouble and eventually built his own P4 2.4c machine under my watchful eye. The brother, however, still uses his, but planted a GF4 MX (eww) in it, even though all he does is get up in the morning and play D2 until dusk.
Mark my words, stay away from them.