liudr:
[quote author=Coding Badly link=topic=180472.msg1337849#msg1337849 date=1375326477]
I have not seen that kind of problem in decades. I suspect you have a "clipboard monitor" installed that is causing trouble.
Not any that I am aware of. I sorted my installed programs in reverse order of installation and removed a bunch of the more recently installed programs. May not solve this problem.
[/quote]
It may not have been your choice. Modern keyloggers usually check the clipboard as well, since password managers like Lastpass use it. 4gb of RAM is also pretty low on a modern machine, especially a Vista one (Win7 uses less ram). You may want to run RAM diagnostic utility to check for errors.