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hbcsc153,Since your connected to VGA #1, and 2 Digital Input Self Test Feature Check appears, that is just the monitor saying I am not getting a DVI signal. You are toggling the B Input Select button to VGA? <ADMIN NOTE: Broken link has been removed from this post by Dell>
The OSD Lock can be Locked or Unlocked by holding the OSD menu button (A) for15 seconds after powering the monitor on.
This information was buried and VERY difficult to find.Never seen this behavior before.
Note: You can also lock or unlock the OSD by pushing the Menu button (A)for over 15 seconds.
<ADMIN NOTE: Broken link has been removed from this post by Dell>
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