- Q10041001 - User upgraded the MAC OS-X to 10.5.8. Upgraded the Areca firmware version to 1.4.7 from www.areca.com.tw, and then loaded in the updated driver for the card. Once he did this, the ARC-1221x drive array no longer mounted. He could see the drives in MRAID (using Firefox at http://localhost:81), but no errors were shown, and everything appeared to be normal. However, the drive array was no longer seen by the Macintosh computer.