Hi Fred,
I tried out to go back to RC 442 ... here the result:

- RC 442.PNG (140.57 KiB) Viewed 7719 times
This was an installation "over" RC 445.
Then I uninstalled completely and installed RC 445 again and now it seems to be OK .. but I have to put in now all my landscapes and places manually
Of course I did a backup and past all the landscapes in the same folder as before, but Yowindow didn't show it. I`m afraid that this information was in one of the caches.
Werner