That's strange.
Sounds like Win7 isn't copying the text formatting that deals with paragraph breaks into the clipboard. Test it on wordpad, office word, and anything else you can think of. Also try copying text from one word program to another instead of from the web. If you do all that and you're still not copying the paragraph breaks, then there's most likely an issue with Win7's clipboard functionality.
I don't know if Win7 has editable settings for its clipboard, but if not, you may be screwed.

Umm so... I can't seems to take screenshots. I'm trying to take a screenshot of just my normal desktop but then when I try to pate it into gimp I just get a message saying there's nothing in the clipboard to paste. I've tried PrtScn, Ctrl-PrtScn, and Alt-PrtScn. Am I doing something wrong?

Finally buying my RAM today.
I have 512 on the computer already.
The RAM I have right now is 512, which apparently makes one gig.
And so I'll be buying one that's 2 gigs on it's own.
I feel like that should be enough.
I don't have the money to buy the four gigs, which is unfortunate.

Cntrl + PrtSc (simultaneously) is the proper hotkey for copying your screen image into the clipboard if you're using Windows. Have you tried pasting it into Paintbrush to test whether the copying is at fault or your Gimp image program is at fault?

I have, and still no success.

You're not going to be utilizing the speed and efficiency of dual channel RAM if you mix those specific different sized sticks. For example, if you have 4 RAM slots in your computer, a 512 stick in one slot, a 512 stick in another slot, then you could add a 1GB stick in each of the remaining two slots for optimal performance.
Dual channel RAM matchups need to be symmetrical.
Make each two RAM channels physically match with each other. Otherwise, only the 512 sticks will be operating at dual channel mode.

Which operating system are you using?

I'm on windows xp. I'm starting to wonder if it's a weird keyboard problem or something. It just makes no sense.

It could very possibly be a keyboard problem.
I know that the keystroke cntrl+prtsc copies screen images into the clipboard. Unless there's something wrong with your clipboard itself (Which Tore is having a problem with right now, in Windows 7, so it's not beyond belief) then a keyboard problem could be likely.

Just to be sure there isn't some kind of weird software clusterfuck, restart your computer an attempt to capture your screen image again. Paste it in Paintbrush. Let me know what happens.

I don't understand what you mean, but my dad replaced the RAM.
He took both of the 512 out and replaced them with 1 GB each.