Hi, I'm trying to fix an issue on a Quad-core MacPro4,1. It's being used as an edit station in a production company, to satisfy the storage needs for this, it has a RAID controller card fitted (Rocekt RAID 3522) connected by two mini SAS connectors to a ProAVIO edit box constituting a 3TB RAID configuration. The kernel panics are intermittent and impossible to predict but do seem to occur during actual editing rather than situations like now where it's light usage of the machine like web browsing. The panics have been happening for as long as we've had the machine which is going on for 2 months now. The problem is narrowed down to the high point card as it is the only configuration difference to all the other machines in the studio and because swapping the controller into another identically configured (except for the high point card), and working macpro reproduces the problem which then disappears when the card is swapped back. We've spoken to apple care about this who've run diagnostic tests to no avail. Solutions tried so far have involved removing the card which does stop the panics but obviously leaves us without a vital component, installing new drivers downloaded from manufacturer's website, and most recently deleting default snow leopard drivers, and downloading the newest available manufacturers drivers and updating once again. None of these solutions have worked and it's looking like we're going to have to simply write off this product as simply faulty and get a new RAID card. As a side note the manufacturer has discontinued this particular model. Does anyone know anything else that can be done to try to solve this issue?