M audio 1814 Not recognized!

[Smakrabit]

My 1814 interface is recieving power through firewire cable but is not "seen" by my mac or protools. I've been using it for months and all of a sudden this happened. I've download the latest drivers from M Audio and Pace drivers and still no connection is seen. I've also tried a different firewire cable. Don't know what else to try
Thanks
Matt

[Smakrabit]

I've fixed the problem myself, after buying a new interface! The new one still didn't work UNTIL I removed the "lastest" M Audio driver and reverted back to version 1.8.1 from 1.8.4. Recognized interface right away and Protools opened for the first time in TWO WEEKS. So, before you spend $400 dollars to replace the interface that isn't busted, try getting a hold of the driver you were using when Protools was operational. Maybe this is a rookie mistake on my part but I thought updated versions of drivers were supposed to fix things not bust them
Matt