Just bumping because I am confused about this problem and really want to address it before it gets out of hand. My clematis with the problem is in a raised bed in the middle of two other clematis which seem to be healthy. That's why I don't understand how it could be a nutritional deficiency. Wouldn't the other two show symptoms as well? I really don't want to get the soil tested, it costs $15 and honestly the clematis came with our house, they weren't my first choice. I don't have any idea what kind they are, I'm not emotionally attached to them (like I am my climbing hydrangeas). We did transplant the clematis plants early spring this year, could the yellowing and green veins have something to do with it? I posted a link with a picture of the leaves a couple of messages above this one.

Hi everyone- thanks for the help and suggestions! I have a few cuttings at my parent's house stateside that looked totally dead. They haven't done anything in the last 2 months. I took a tiny blade to make a small slice in the bark (I read somewhere that if it's still green under the bark it's still alive) and sure enough, a few are still alive! I'm not sure that means they'll stay alive, especially since I cut into their bark. :( I am not quite sure how to tell when parts of the mother plant are semi-mature but I think I did come across that once in my searching. I am going to take a few more cuttings (if there are only good ones left!) in about a month so fingers crossed, I can make them grow. If not, I think I'm taking Ken's advice and buying some stateside. Thanks again everyone!

I use the screen capture utility Picpick for things like that. It is recommended on gizmo's site. Push the print screen key and it opens, select capture region and hold down the mouse key to draw a rectangle around the puzzle and you can print it, paste it, save it or other options.

Have you tried uninstalling the program and then reinstalling it? Might solve your problem.