Hello, This past week I installed a flash drive 4-vmi card in an old Adix-M, version 5.4, dos CPU,replacing a external Active Voice unit. Programmed everything up fine, the thing worked great all day, Then late at night, it stopped. Maybe something happened during housekeeping? Came in the am and the 4 port lights were flashing, could not connect to it. Resets didn't help, Then got another card and the exact same thing happened again. What am I doing wrong? How do I freeup these VM cards? Thanx.