The windows thing moving slow might happen if you do not have the correct video driver installed.
I don't see any reason to remove the backup utility.
The only drivers listed on the site for your computer....http://www.emachines.com/support/drivers.html
for your computer are the ones for the Chipset Driver (Packge), Realtek Audio Driver, and Nvidia VGA Driver.
Not sure those ones are going to help you connect to the interent but that link above is the best one for their drivers site, however, you do have to enter in all the information for your system.
Since you cannot get there on the computer that is having problems, and if you cannot download them using the PS3, you will have to download the drivers to another computer and transfer them over to the computer you need them for.
The thing that I am wondering about is you say you do not have a modem, do you mean in the computer that you are having problems with?
Edited by Stang777, 01 January 2010 - 12:24 AM.