Ok… I should have posted my last message a bit later, as I just ran into totally new Info on this matter:
I just found out, that the just described problem with the image boxes only happens with “textboxes” including “PNG-files”. JPG-files are ok and PNG-files in picture-boxes are also ok. It is an old habit of mine, using text-boxes for images, as some versions ago, rapidweaver showed my images blurry after some time, when using picture-boxes.
So I this problem SHOULD either be fixable by realmac or temporarily manually be fixed by every user by replacing every text-box with PNG-files with picture-boxes. Maybe also there is some kind of setting, one could adjust to make this work after all?
BUT: What about the problem with the “fr_CA.lproj”? I always assumed, those two problems relate to each other. But thinking about the error message I get following thoughts in my head: This error occurs, when RW7 tries to copy those RW6 add-ons over, right? So one of the new features of RW7, which I originally bought it for, ist that the add-ons and the project-files can the stored on cloud-space like Dropbox and be used by every RW7 installation. So why not have (the functioning installation of) RW7 copy all the add-ons to another location (where definitely is no “fr_CA.lproj”) on e.g. Dropbox, and have the (other installation of) RW7 point to this directory for handling add-ons? There shouldn’t be a problem after all, am I right? All add-ons would be in a save place and RW7 could stop trying copying the RW6 add-ons every time it starts. … but it doesn’t! It keeps copying (or trying) all RW6 add-ons at every startup.
So, realmac… now it’s time to respond and fix that. I seems, this IS a RW7 problem.