Whew, okay, thanks for telling me to wait. It just started downloading again right where it left off. Took about 20 minutes to verify the 9 gb I already had. :)
Normally when restarting the Downloader with a "the_witcher_2.bin" file present in AppData, the app only checks for correct chunk sizes (and this is fast). With a "new" download, the app verifies checksums also, if chunks are present. That's why it is taking so long. We'll change that.
Also your current downloads won't disappear from the list when updating to a future version. 3.0.40 has that fixed.
May I suggest (again) that when it's checking integrity, to change the text from "Preparing" to "Checking", "Verifying existing chunks" or anything else that will give an indication of what is currently going on? I think it would help a bit, and I hope it's not that hard to do.
Sure, we'll even add some progress visualization. To avoid such confusion.