Thanks for a swift reply! Well, the reason I downgraded is because Windows 7 was not behaving well on my laptop. It was really frustrating. I've encountered several people that had the same problem, but no one has come up with a solution.
But still, if what you said is correct, I'll definitely try it.
Also, I am a student - so I'm eligible for the $29.99 copy of Windows 7. Is that a full copy, or an upgrade? I'm thinking of creating a separate partition for Windows 7, as I don't want to reinstall all my programs again. I do have an external harddrive, but, again, I won't be able to transfer programs anyway.