Thanks Junior, I didn't see this until now, I have my preferences set to receive email notification of a response. Or maybe for some reason your reply is not one that I would be notified of? Anyway, I downloaded the version for my 64 bit updated 8.1, opened the zipped folder, clicked on the "exe" file inside, I saw a window blink on my screen and nothing happened. Clearly I'm not a high level user, as only then did I go back to the website and see that I should have downloaded the "installer" version. Two questions: 1) is there anything I need to undo as a result of having clicked that aeroglass.exe, and 2) I read the other day (somewhere) of complications when using the installer version, but can't find what or where. Does anybody have experience with that download, with any warnings or advice? Thanks!