Computer freezes when mastering to DLT

Hi,
I have an old style G5 with DVD Studio Pro 4.1.2 and an ATTO Express PCI UL5D and a Quantum DLT 4000 drive.
It doesnt work at all. When I attempt doing Format and Build it asks me to insert a tape, then is says waiting for tape to be ready and then it totaly freezes and I need to force restart.
Anyone had similar problems? I looked around on the net and cant find a solution anywhere.
Thanks
Nicolae

I have no experience with DLT's but offer the following hardware suggestions.
Run System Profiler to verify that the tape drive is identified. It should be listed
Pull and reset the PCI card (assuming this is how the DLT is connected) to rule out the card not seating properly.
Can you get a substitute cable to rule out the cable not being up to snuff?
I don't think there should be any software out there but there might be a plist file for the device? if so ditch this.
Finally ditch DVDSP plist file as well. Then open DVDSP and create a new project. Review the preference pane to see if the DLT is identified.

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Computer freezes when mastering to DLT

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