Yes, I thought that it may be hidden or minimised or somewhere else. Unfortunately no. Originally I was running the portable version so instead installed a new version hoping that the problem would be solved. No difference really. The only clue I have is that at one time I dragged the Quick Capture bar away from being docked in the corner. That's when the problem started. It now briefly appears on boot up but disappears after that. I can't get hold of it long enough to drag it back.
I guess it can be any number of issues and maybe something to do with my laptop, graphics, or other programs who knows? I don't believe I changed anything before it happened.
So, in summary the only thing I have to offer is that it changed after I dragged it across the screen. It only goes to the centre anyway.
Thanks for your help. I can get by with hotkeys but it would be nice to have the bar.