Computer won't wake from Sleep Mode

[smurof7neves]

It does this every once in a while. It happened twice in the past 2 days. I'm not sure if it's something I left open before going into sleep mode or something else.

So the computer's been in sleep mode, usually for at least an hour. I do the usual thing to wake it up, move the mouse. After a simple movement fails, I try again, moving vigorously and clicking all the mouse buttons. I have also tried pressing all the keys on my keyboard.

None of this works and I have to restart the computer. Any idea why this could be happening?

 

[Maguscreed]

Generally it's the result of a driver power management problem. Most commonly occurring when you have been forced to use a vista driver in place of a proper win 7 driver, as power states have changed a bit between the two.

 

[smurof7neves]

Generally it's the result of a driver power management problem. Most commonly occurring when you have been forced to use a vista driver in place of a proper win 7 driver, as power states have changed a bit between the two.

Okay, so how would this be fixed?

 

[Maguscreed]

Well the only way I could check anything remotely would be if you had some minidumps to upload so I could look over your driver data.
We could try creating some using this method.
http://www.sevenforums.com/tutorials/101379-driver-verifier-enable-disable.html
(Please read all instructions for driver verifier before using as it's possible it will make the machine behave badly and you need to know how to undo it.)