@Barry , i noticed something weird.
Same issue with profile page links, if i left-mouse click, link redirects. But if you middle-mouse click or right-click open in new tab, link doesn’t redirect.
Also when i click ‘mail’ icon to e-mail someone, there is no option to close that pop-up window if i give up, ESC doesn’t work, so i need to refresh page to get rid of it.
Also in the profile editing page when i click this ‘help center’ hyperlink, it goes to this blank page.
You did not told us what version of SketchUp you are using and it not sown in your forum profile either. Most like this can be an explanation if you are using more than 3 years old version:
As I wrote, put that in your forum profile. “Windows 8.1” and “Intel OpenGL” are clearly wrong. That information helps us help you but on if it is correct. When it’s wrong it takes longer for us to help you. It wastes your time as well as ours.