thanks,
I'll give it a try again.

I somehow screwed up my robot. My original tests had very high AR's and low UI's. I'm not sure what I did, but the test results got worse, so I thought perhaps I didn't unzip the history files properly, so I tried again.

Well, the results got much worse, for both Z12 & Z3. The last Z3 test gave an AR of 56% and UI of 24.5%.

I decided to totally clear the history file and try extracting the zipped files again. That just made things worse, because now I am just getting History missing errors & and the test can't even finish running.

Luckily, we are on vacation this week with my brother-in-law who's a programmer. Maybe he'll be interested in Zorro enough to help me some. If not, I'll get back to it myself next week.