[carpetmojo]

OK guys - many thanks for your patience, without a tech-savvy son in the house anymore I struggle sometimes, it's the terminology that's usually the problem [for me].
By Downloads Panel, I should probably say Windows download window [headed Downloads]. I super-impose that on the Calibre site, then when I drag and drop over to Calibre, nothing happens.
This happens on Reader Library as well, both titles are in the pre-library list, when I try to drag from the list to Library, pre- dragging to reader to finally transfer it, nothing happens.

What I would normally do is right click on the downloaded book in the download window, cilck on Open containing folder, which opens the Temp folder, with book in, highlighted, and drag from there and drop into Calibre or Reader. However, I cannot "Open containing folder" as it isn't offered as a viable option [not in bold type].
The last folder I used in Calibre is K4PC, and when I open/navigate to the source options on the left [My Docs/my computer etc..] the downloads aren't anywhere, even in downloads !
The one I can't figure is why it won't work in Reader, when the damn things are in it in the first stage of transfering.
I know it's me somehow, but this is the first time I haven't been able to work it out.
Perhaps I should cancel all and start again, see if that breaks a log-jam somewhere.
Or find other versions - but that wouldn't solve the problem I seem to have.
I have successfully d/loaded something from K4PC via Calibre , if you're with me, with no trouble, since this cropped up....
Sorry to be a pain.