Actually, I hadn't noticed the "Select All" button, I was just manually selecting for download. I have a large pool of downloaded missions ... but I can't just drop them into my fms directory because the downloader won't recognises them as already downloaded.  I see that I have a "downloaded_version" entry in missions.tdminfo, but to my dismay there's no checksum or anything like that to validate. I'd really rather not re-download 900MB of missions.  Is there any way to check which of