Dennis, thank you for your reply. This all started when the ARRL DXCC online application wouldn't run right with Internet Explorer and they said to install the Firefox Browser. The download for Firefox basically hijacked my machine and loaded it up with many unwanted programs. I aborted the hijacking and individually removed the unwanted programs. That is when I started getting the Logic error. I did as you said and updated Logic. That didn't do it, but I went back to an earlier operating system restore point and it fixed the problem which did involve the SlimDX stuff. Somehow it had been deleted. At that point Logic was working, but the other crap that was installed was still there and would not uninstall. I went back to the next earlier restore point and got rid of the malware crap. That is now all gone, but I'm getting another error from Logic involving licensing. "Error 1426 OLE error code 0x8007002: the system cannot find the file specified. has occurred in program license.init, line0". If I say to keep trying it comes up with "Your license file is invalid - please reinstall." I ran the update again, but I am still getting the licensing error. What should I do next? Perhaps something has been lost in the registry. I have the whole Logic folder backed up and also still have the installation .exe from 5 months ago. Your help is greatly appreciated. Bryce