This sounds like the system does not recognise your drive in the given configuration.
Before you start into buying new things, just a quick check on two things:
Did you install new software?
Was your PC hit by power surge?
It may sound rediculous, well it is not. Very often your BIOS setup has changed without notice. Have a look for the correct setting, is there still a 3.5" drive mentioned, capacity 1.44 MB, is it A drive, if no other drive is installed, is there any other drive mentioned in the BIOS?
Next item to check, why did the old drive quit. Did you install any other hardware and the power supply is unable to support too many individual items?
If no new items installed, check the connection (power) which was plugged to your drive. Did you use the same connection now on the other drive?
Is there any other free connection available to test the drive?
Check the data cable, they are manufactured in low quality and very often the post-pluggs brake or, even worse to detect, the metal gripps did catch another cable (unable to detect without special equipment) and due to any vibration or movement the fault appears only now.
Only if you have checked these single steps you can be very sure that a new drive will solve your problems...
Merry xmas anyway and good luck