Digital Performer help!

Hello, I have DP version 5.12 installed currently. It was working great until I upgraded my OS from Tiger version 10.4 to Leopard version 10.5. Now every time I try to record in DP when I press the space bar I receive the following message in a pop up window. . . mac os error: Resource was not found -192
I have tried to re-install the program with my DP cd and still am receiving the error message. I have a theory that DP 5 may not work with the Leopard Os for what ever reason, but perhaps some one here has better news for me. Any help would be appreciated. I would contact MOTU today but their support lines are closed on Sundays. Thank you. I have discovered the answer and for those of you struggling with the same issue the answer is to update DP 5.12 to 5.13 with a patch that is available at MOTU website. You must be registered at the site and your software must be registered as well. I will be patching this as soon as I am able to come up with my registration number for DP.