Monitor will not sleep while computer is locked

Anybody have any ideas? I'm still at a loss, I cannot figure this out.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom
OS
Windows 7 Ultimate x64
CPU
Intel 2500k
Motherboard
Asrock Z77 Extreme4
Memory
G.Skill 16GB DDR3
Graphics Card(s)
AMD HD 7950
Monitor(s) Displays
2x Dell ST2310
Screen Resolution
1920x1080
Hard Drives
120GB Sandisk Extreme SSD
3x WD 2TB Black
2x Samsung 1TB F3
PSU
Corsair 650TX
Case
Corsair 400R
Cooling
Cooler Master Hyper 212 Plus
Keyboard
Ducky Shine DK9008S Black Cherry White Backlight
Mouse
Logitech G500
Internet Speed
50/5Mb
Antivirus
MSE
Browser
Chrome
I am in the EXACT same situation. My monitor will "sleep" or go off or whatever anyone would like to call it but as soon as it locks, the screen will then turn on and stay at the login screen until I log in again. I also have Borderlands 2 installed and that is a newer install so maybe that IS in fact the issue. I don't see how/why?
 

My Computer

OS
Windows 7 Professional x64
CPU
AMD Phenom II X4 965 Black Edition
Motherboard
Asus M4A78T-E
Memory
12GBs over (2x2) OCZ and (2x4) G.Skill
Graphics Card(s)
MSI N660 Ti PE 2GD5/OC
Sound Card
Onboard
Monitor(s) Displays
Asus VW246H
Hard Drives
WD 1TB
WD 500GB
OCZ Vertex III 120GB SSD
Hitachi 160GB
PSU
OCZ Modular 650W PSU
Case
Fractal Design Define XL Black Pearl
Cooling
CORSAIR Hydro Series H60
Steam may be the culprit...

Am I missing anything? I don't understand how the monitor will sleep when the computer isn't locked.

I have the same issue (in case you didn't see my other posting).

Going off the Borderlands 2 lead, I did some digging and got didly. I just got fed up one night and closed out of Steam - Didn't uninstall or disable anything, just simple exit.

And that seemed to work.

When I load Steam and leave it running, it goes back to the no sleep.

SO......

Try closing Steam and see where that takes you. I'm heading to their Support forums now to see if anyone is like us but if you can verify my results on your end, at least that makes two of us.

Hopefully, we have something now...
 

My Computer

OS
Windows 7 Professional x64
CPU
AMD Phenom II X4 965 Black Edition
Motherboard
Asus M4A78T-E
Memory
12GBs over (2x2) OCZ and (2x4) G.Skill
Graphics Card(s)
MSI N660 Ti PE 2GD5/OC
Sound Card
Onboard
Monitor(s) Displays
Asus VW246H
Hard Drives
WD 1TB
WD 500GB
OCZ Vertex III 120GB SSD
Hitachi 160GB
PSU
OCZ Modular 650W PSU
Case
Fractal Design Define XL Black Pearl
Cooling
CORSAIR Hydro Series H60
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