Hard Disk error ??

I bought a new system . AMD 1000 Mhz.
Win ME pre-installed. 1st thing I did was that i installed Norton Anti-virus 2000 .
Registered to receive LiveUpdate and all that stuff … I was told to restart and then Live Update would take place .
But, after restarting . it said a norton’s .dll file ( I forgot the name ) had replaced the one of Win ME !!!!!!
It said system can not proceed . Try installing the operating system again !

What should i do ? Then I did FDISK and auto format takes place during the setup .
Then while scanning registry .
copying files necessary to contine you with setup….

then an error comes…
REMOVE ANY FLOPPY DISKS FROM YOUR DRIVE AND PRESS ANY KEY TO RESTART …

What is this ! Man…. HELP ME ….
FAST !