Hi all I have a couple of Oki 3305BU 1/3 height 5 1/4" drives. On startup the motor spins and the heads load, but the heads don't move. Also, my BIOS tells me I have a drive failure. On taking them apart for a bit of a lube I noticed they have EPROM 8748s inside. Could this be the problem, EPROMs lost data? This would be a first for me, I have EPROMs from the seventies which are still fine. Anybody familiar with these drives? Thanks W