I have a flashing blue lock showing open and closed. How can I stop this?

Yesterday a friend downloaded some pictures from his camera.  A blue padlock started the falsh in the middle of the screen.  It shows open and then closed.  I can't stop my monitor off either.  What I'm doing.

Hello

see if it's what you're talking about:

http://www.paulstravelpictures.com/Dell-LCD-monitor-flashing-padlock-icon/index.htm

Tags: Windows

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