Laptop Doesn't Turn Off Screen, Go To Sleep?

I have recently notice that my laptop has the following issues:- Doesn't follow power option settings (shutting off the monitor, go to sleep on timeout, etc)- Doesn't turn on the screen saver. Previewing the screensaver turns it off in about a second (even if my hands are off the mouse/keyboard).- Windows 7 Projector Connection screen (WinKey+P) goes away after a second or so after bringing it up- Some windows open in background (for example, Picasa image viewer opens windowed in the background instead of fullscreen in front as it used to) From what I understand based on some light Googling and vague leads, there is some sort of interrupt happening that makes the OS think it is being actively used. Unfortunately I am not sure how to pinpoint and solve the issue from here on, so therefore I turn to this forum for help. Some notes about stuff I tried and know about this issue:- This must have happened in the past week or two. I do not recall installing any new software and the only updates that passed my memory were Windows Updates.- Checking Task Manager doesn't reveal any suspicious processes to me.- Some sources suggested this could be a faulty Logitech driver. I own a Logitech mouse and keyboard combo.

Something to consider, I guess? Specs:- Windows 7 32b SP 1, up to date- AMD Turion 64 X2 TL-58- 2GB RAM- 250GB HDD- ATI Radeon Xpress 1150- Connected devices: LAN, Logitech Alto Connect Notebook Stand, Logitech S520 Keyboard + mouse that goes with that kit, USB external drive, VGA monitor, line-in running into the microphone port to play sound out of the laptop speakers