Weird info window in Abitus : Far York

[cvtfwlbt]

I replayed Abitus : Far York today, and when gathering the Mortar Tech, two different info windows appeared, describing the Tech. After completing the map I restarted it three times, but the second window never appeared again. I'm sure it described the tech, I obvioulsy couldn't be bothered reading it through, but it surely said "Mortars", had a black backgroud, a red "X" to close the window, and in appearence, font etc looked somewhat like the energy window you have on top center. The second, regular window appeared when I closed the first. It was all very brief, so I can't tell much more: I hadn't seen an info window in a long while, so the appearence of the first window seemed perfectly natural. Version 2.01