Fails to Boot from Sleep (64-bit)

[vpalko3]

Since the past 2 weeks, my Alienware Area-51 m15x notebook has been having issues booting up from standby (sleep) mode.

When pressing the power button to boot up the device (or by using the IR remote), the illuminated keyboard lights up, fans whirl, and the computer seems to boot up; however, the display does not power up or even so much as flicker. I press the power button again in hopes it will go back into standby, but it just shutsdown; losing all my unsaved data from running programs. Ever since, my computer has never been able to exit sleep unless I immediately power up again after entering standby mode(3 sec after max).

Any possible solutions that do not require a reformat and a fresh install? (over 400GB of data on the 500GB HDDR, recovering will take a day)

System Specs:
Manufacturer:
Alienware
Processor:
Intel(R) Core(TM)2 Duo CPU T8100 @ 2.10GHz (2 CPUs), ~2.1GHz
Memory:
8190MB RAM (8GB Dual Channel DDR2 SO-DIMM)
Hard Drive:
500 GB (integrated 7200RPM); 500 GB (SmartBay Drive) hot swap drive
Video Card:
Mobile Intel(R) 965 Express Chipset Family (512MB ATI Mobility Radeon™ HD 3870)
Monitor:
15.4-inch Widescreen WUXGA 1920 x 1200 (1200p HDTV resolution support) with 2.0 Megapixel Webcam and 2 Digital Microphones; Secondary 42" LG HDTV
Sound Card:
Realtek Digital Output (Realtek High Definition Audio)
Speakers/Headphones:
# 7.1/5.1 Digital High-Definition Audio (8 Channel) (Built-In Two Speakers)
Keyboard:
Alienware Exclusive Illuminated Full Size AlienFX® Keyboard / USB Root Hub
Mouse:
Full Size Illuminated Touchpad with Rocker Buttons / USB Root Hub
Mouse Surface:
Mylar Touchpad
Operating System:
Windows Vista™ Home Premium 64-bit (6.0, Build 6001) Service Pack 1 (6001.vistasp1_gdr.090302-1506)
Motherboard:
-classified-
Computer Case:
Skullcap Design (Area-51 m15x)