Hi could any one help us with a Classic Mill Power system on a Bridgeport.

The machine, when we revived it, had to have the hard drive reformatted and the mill power software installed, we use it on a limited basis and it my go unused for a week or two. the machine started acting up screen freezes and then nothing the hard drive sounded louder than ever and the usual beeps etc on start up ended and no screen display etc now. I read that the hard drive fail regularly so we replaced the hard drive with one that I know is good but now the machine will not boot from the Fdisk that we received and the 3.5 inch floppy is not even working upon start up I tried another floppy drive. I know that the CMOS battery is no good but it never was a problem before I will be replacing it to see if it changes things. all of the led indicators are lit up in the crt area part of the system except 1, and we can not find that led on the board! or the drawing! that indicate all is working properly. If any one has any ideas please let me know

thank you