My computer displays a blue overlay over my log in screen when I wake from sleep. How do I avoid this?

Question

My Macbook Pro (late 2012) recently started making a weird startup noise coming from the optical drive and displaying a blue overlay screen with a bar at the bottom when waking from sleep, after about 2-3 hours of non-usage. It then takes about 30-45 seconds until I can type in my password. When I first got my computer, this wouldn't happen.
Any idea why it does this and how I can stop it?
This is a picture of the screen:
Message was edited by: ekom
(I did click the camera icon to add the picture the first time. I tried it again.)

Answer 1

If you want to post an image please use the Camera icon in the message composition window's toolbar. You cannot just drag one in from your computer, hence why your image does not appear.
I would suggest you try this:
Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.