I'm a long time member of Cloudy Nights and have made quite a few posts .... most of them to the Solar Observing and Imaging Forum. However, I've been absent for quite a while now ... having suddenly experienced a detached retina in June ... plus a number of complications since. However I did manage to get my DSLR and camera tripod out the past two mornings to try to shoot Comet NEOWISE. ( Still not allowed to lift anything as heavy as my CGX-L mount or tripod) Anyway, this morning I was successsful doing so, but when I tried uploading the shot here to this forum, i got a message that I was blocked. I didn't upload the photo directly, but made a link to my Flickr site ... but I've done that before. Could someone perhaps offer a suggestion as to what might have caused this?