Trying to rename a couple files in finder. Sometimes it works and sometimes it doesn't. I can click on the file to bring up the cursor, and the name gets highlighted. Once I start typing however, it just takes whatever I have typed and closes the cursor edit box and I have to start all over again. It's like I have a 2 second window to rename a file. Even if I click and the cursor comes up, if I don't type anything and watch it the cursor disappears after 2-5 seconds.