Since you dropped it, there is a real possibility that the HD is bad. Have you tried to test it? I use a live Linux CD to do that and test the rest of the system. Below you will find a couple of links to download a Live CD.
http://fedoraproject.org/
http://www.ubuntu.com/
The link below will allow you to download a program that will allow you to boot either of those programs form a thumbdrive. Just make sure you read everything before trying it. I prefer Yumi, it allows me to load multiple programs for my testing, but universal installer will work just fine to load a Linux Live CD and let you test the basics.
http://www.pendrivelinux.com/
I dropped my laptop (Dell Studio 1749, was running windows 7), picked it back up it was fine, used it for a while and then out of nowhere I got the blue screen. Turned it off, and initially it wouldn't stay powered on but about 30 minutes later it did. When it powered on it displayed a black screen and the message there was no OS found. I dug out my windows 7 cd that came with my laptop (it was previously loaded by Dell before being shipped out) and tried to re install it. I got past the first easy steps and I'm at the part where is should ask me about partioning but it's not giving me that option, it's asking for drivers to load the OS but unfortunatley when I put in the drivers installation cd I'm unable to find the correct ones. Any help you can give would be GREATLY appreciated, I'm a little tech savvy but this is getting beyond what I know apparently. Thanks!

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