Sorry,
I found the log files. They only seemed to indicate statup and shut down times, versions and perhaps what I ripped etc. There was no log file associated with the encryption error.
I only receive the encryption error when I try to select a SOURCE file for conversion to (in this case) MKV. The encryption errors are simply pop-up windows which show each *.vob file is not valid because it is encrypted. I tried this with a dvd that was previously ripped with a much older version of dvdfab and then I re-ripped it with dvdfab 8.0.0.5 and got the exact same results both times.
I didn't get dvd ripper because I wanted the ability to create MKV's (which ripper does not "say" that it can do, but I also have a bunch of previously ripped *.mp4 files that I want to re-manipulate into other formats for newer portable devices ......... So... converter seemed to be the choice since I figured I could always use the free HD decrypter, rip to VOB and then with converter make whatever I wanted. Was I wrong?