Copy & paste (Ctrl-C & Ctrl-V) work fine for me in game, but the information does not carry outside of the game. Whatever text I copy in game does not appear to go into Window's clipboard, though whatever is in Windows clipboard comes in to the game. So for example, I can copy a url from my web browser and post in game, but I cannot copy a url from a linkshell message and use it in my browser (or even Notepad). I can, however, copy text from in the game and use it in the game--either in chat or in a support request.
I'm going to try running the game "as administrator" after maintenance to see if that fixes it, but if anyone else has a better idea, please let me know.
Update: Running as administrator did not fix the problem.