stuck in a loop
 

I am having a huge problem with my wifes Gateway Essential 433C computer.I
did a clean install a few days ago and was loading programs and updating
drivers. I downloaded the wrong audio driver and when I unzipped it the
screen was FULL of icons, the wife wouldn`t have that so I put them into the
recycle bin. Later I had another driver downloading and a problem came
up...and bad went to worse so now I`m trying to do another clean install but
can`t get to a startup menu or anywhere with the boot disks I`ve been told to
download. I`m stuck in a loop of "insert disk,boot, remove disk,reboot,
remove disk.insert disk....any ideas? Two days ago this this was running so
well it scared me, now , nothing going.