Is that what I want?
It had a 2.25 version of the core 15.
I paused the work unit,
removed the original 2.25 .exe file to a folder I created on my desktop, then inserted the new (old) version 2.20.exe into the directory.
I restarted the work.
Now, NOTHING has changed in the log file, referring to the fact that it still says version 2.25.
Taking 3 minutes and 44 seconds per frame on this 550 Ti.
WIll look at it in the morning!
Thanks guys!
micro...