I followed the instructions on the Apple Support document you sent to me: reverting the energy display settings to default; quitting applications and then attempting to take it to sleep mode, etc, but to no avail. The latest entries from the Console's system log are as follows:
Feb 3 13:32:02 Big-Mack helpd[560]: Failed reading an alias at file://localhost/Users/neyfonseca/Library/Documentation/Help/.DS_Store: Error Domain=NSCocoaErrorDomain Code=256 "The file couldn’t be opened." UserInfo=0x7fbad9e83db0 {}
Feb 3 13:32:02 Big-Mack helpd[560]: Could not find access page in directory /Applications/Final Cut Pro.app/Contents/Resources/English.lproj/Final Cut Pro Help
Feb 3 13:32:44: --- last message repeated 1 time ---
Feb 3 13:37:27 Big-Mack com.apple.usbmuxd[76]: stopping.
Feb 3 13:37:27 Big-Mack com.apple.usbmuxd[598]: usbmuxd-344.3 on Oct 13 2014 at 21:10:09, running 64 bit
Feb 3 13:38:53 Big-Mack com.apple.launchd.peruser.501[168] ([0x0-0xe00e].com.apple.iCal[183]): Exited: Killed: 9