On my new ASUS ultrabook with Win8 preinstalled CTRL X cuts the selected text. But often not always leaves an 'x' behind. I thought it was me accidentally typing 'x' twice. It is not.
Second problem. After that often the selected text is not actually cut (or copied) captured. The previous clipboard selection gets pasted (instead of the current one) when pressing CTRL V. It happens often. Not always easy to replicate though.