There should be a button or something that says about "signal volume". Try holding it down for 3 or up to 10 seconds. It should unlock then.

I'm guessing you're on a Windows XP or Windows Vista system. If you are running as Administrator, the following should work. To view the current memory used, you'll need to open up the Task Manager. Open up the Run box (Windows Key + R) and type in "taskmgr", then hit the Ok button. A Windows … Read more