Get a BRAND NEW disk. Put this on it
http://www.forat.com/Downloads/2_mpc2kv172.zip
Unzip that file and put that on the new floppy disk everything on the new disk except the PDF file.
NOTE:use a brand new disk that has never been used DO NOT USE THAT SAME DISK.
Load that up tell me what happens.
If it still is getting an error your drive needs to be replaced. Its simple to replace it uses the same floppy drive as an PC.
Manual:
http://www.forat.com/Downloads/MPC2000E.zip
Nicole