Windows 7 64-bit machine Blue Screen every time it wakes up from sleep

Any idea how to fix it?

Computer is a Gateway FX6802. Intel Core i7 940 @ 2.93GHz 12.0 GB Ram 64-bit Windows 7 OS

I got a new monitor to replace one of the monitor's in my 2-monitor setup. But I don't see how that would cause such a problem.

Also, although this BSOD (blue screen of death) problem is new, I've had a problem for years where the computer will suddenly freeze solid, requiring hard reboot. It often happens very soon after coming out of sleep, but also at other times. I don't know if the two problems are related at all.

I keep getting this error message on the blue screen every morning for the last several days, but the stop code changes slightly in the third section in parentheses (a previous time, it was 0xFFFFFA800C8DCE30):

INTERNAL_POWER_ERROR

Technical information:
*** STOP: 0x000000A0 (0x0000000000000001,0x0000000000000006,0xFFFFFA800C8DCE30,0
x0000000000000000)

Windows Event Viewer says:

- System 

  - Provider 

   [ Name]  Microsoft-Windows-Kernel-Power 
   [ Guid]  {331C3B3A-2005-44C2-AC5E-77220C37D6B4} 

   EventID 41 

   Version 2 

   Level 1 

   Task 63 

   Opcode 0 

   Keywords 0x8000000000000002 

  - TimeCreated 

   [ SystemTime]  2013-09-06T18:19:28.540024600Z 

   EventRecordID 827962 

   Correlation 

  - Execution 

   [ ProcessID]  4 
   [ ThreadID]  8 

   Channel System 

   Computer FXPC 

  - Security 

   [ UserID]  S-1-5-18 


- EventData 

  BugcheckCode 160 
  BugcheckParameter1 0x1 
  BugcheckParameter2 0x6 
  BugcheckParameter3 0xfffffa800cb112c0 
  BugcheckParameter4 0x0 
  SleepInProgress true 
  PowerButtonTimestamp 0 

Another crash on 12/21/2013. I didn't see an actual BlueScreen, everything just froze. Hard reboot required. It happened about 5-10 minutes after starting up the computer from the off position (not sleep/hibernation).

Problem signature:
  Problem Event Name:   BlueScreen
  OS Version:   6.1.7601.2.1.0.768.3
  Locale ID:    1033

Additional information about the problem:
  BCCode:   117
  BCP1: FFFFFA800A143010
  BCP2: FFFFF880059DCE30
  BCP3: 0000000000000000
  BCP4: 0000000000000000
  OS Version:   6_1_7601
  Service Pack: 1_0
  Product:  768_1

Files that help describe the problem:
  C:\Windows\Minidump\122113-24944-01.dmp
  C:\Users\Nick\AppData\Local\Temp\WER-178433-0.sysdata.xml

Read our privacy statement online:
  http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
  C:\Windows\system32\en-US\erofflps.txt

It sounds like it's a hardware issue. You should probably call your computer manufacture. If you want to troubleshot it yourself you could try using system restore to undo recent software changes. This article might help you troubleshoot.