Computer is stuff at certain resolution and freezes when I try to change it

I have a laptop that has Windows Vista and I seem to be having problems with it. My resolution was changed by default when I installed a certain program and when I tried to change the resolution, it would freeze. The problem wasn't the program I installed, I had installed it many times before as well as on another computer. I guess the problem happened before and I only realised it then. It's not just when I open the Display Settings page, every option in the Personalize page when you right-click the Background will freeze the moment I open them. It is getting really anoying because it messes with all the resolution for my games.

Please help

This would be a good case for using System Restyore to roll back to a point before the problem started, I think.

Is there any other option, I'm not sure how far back it would push me if I did that.

What is System Restore?

http://windows.microsoft.com/en-US/w...System-Restore

Sorry, I accidentally used my mother's account to post this message.
Anyways,

I was able to do the system restore, but the problem happened more than three days ago. Is there a way to do the system restore from longer ago?

If the restore points are there.

You have to explicitly choose to see older Restore Points:

Those options aren't there when I open the page.

What options are not there?