Since a short while, when I select something in, say, Firefox, Chrome or my mail client, hit Ctrl+C (or use right-mouse-button and select copy), hit Ctrl+V in another application that supports copying with layout (like MS Word), the layout is not copied.
At first I thought no complex content could be copied at all anymore, but programs still seem to manage to get complex content on the clipboard (i.e., hitting Alt+PrtScr still works).
But, trying copy and paste inside the same program, for instance MS Word, it doesn't remember the layout, it just pastes as plain text always. In MS Excel, it's even weirder, normally you see a dashed bar around your copied content, but this bar only flashes momentarily. The "paste options" only show the "paste as text" option, the others aren't there.
I tried restarting and I am up to date with the latest fixes of Windows Update.
Any other ideas I could try?