Will not connect to windows unless I shake laptop

when did you install windows 7? Windows 7 might be to strong for your laptop or you might have to reinstall windows 7.

Shut the system down by holding the power button for 5 seconds or more. Turn the system back on, as soon as the blue dell logo goes away tap f8 on the keyboard. This should bring you to a menu from which you can select "safe mode". See if it starts in safe mode. If so, troubleshoot further from there. If not press f12 on the dell logo and choose diagnostics. Run a quick scan, see if any errors are returned for the hard drive.

load dell diagnostics and check your hard drive, one of the options when the dell logo is on the screen.

Run Dell diagnostics to see if your hard drive is faulty.

Connect power cable, turn on laptop and press F12 key when the Dell logo comes up.

Select Diagnostics and hit enter, if you get the windows splash screen, turn off laptop and repeat.

Try to 'recover' or 'restore' to an earlier time. Look under help in the start menu in order to find links to make this happen on your laptop.

Or, try to get Windows 7 Home Premium 32 bit, and install it through the DVD drive, if so equipped to overwrite the old operating system that is giving you trouble.

One may also try to download the Windows 7 operating system, if a DVD drive is not available, but an Internet connection is.

Good luck on this repair.

You can try to boot to safemode. When you turn on system as soon as you see Dell logo keep tapping F8,select Safemode under advance boot option. If you we're able to log in to your account you can try to uninstall video driver and restart the system to normal mode then reinstall the video driver.
If you we're not able to boot to safemode , you can try to connect to external monitor toggle to FN+F8 if still not showing anything might be a bad video card.

Immediately after seeing the Dell logo, keep tapping the 'F8' key,
until you see a "menu" (white text over a black background)
giving "startup" options for Windows XP.

Select "Safe Mode" and see if you can start in that mode.
Then, use "System Restore" to go "back" in time, to the most-recent checkpoint (date/time) where your computer _DID_ work.

Restore to that point, and restart.

press the Fn Key and the power button see if the diags will run. You may have a hard drive problem or an issue with the operating system

First, I want to know if you sees the Dell logo after turning on the laptop? If yes then this is no boot issue.
1. Immediately run the PSA. Make sure laptop is off. Press and hold down the Fn key, while holding down Fn key press the power button at the same time just once. Once the Dell screen loaded you can now let go of the Fn key. Check if the PSA will run short test for the LCD, RAM and HDD. When full color displays on the screen just press Y. PSA will continue. Just take note of any error code will appear on the screen such as 0141, 0142 and 0146 these are HDD failure errors which means HDD needs replacement. If the test says no errors found then proceed to step 2;
2. Try restarting the laptop once you see dell logo then keep tapping F8. Select last known good configuration. Press enter key. Just wait and check if laptop will load Windows. If not then, restart laptop keep tapping F8 try to select safe mode check if it will load Windows. If not then prepare the Windows OS disc the one came with your laptop.
3. While laptop is on insert the Windows OS disc. Restart the computer. On the Dell screen keep tapping on F12 to show boot menu. In the boot menu select CD/DVD ROM Drive. Press enter then keep tapping on space bar until it will say Windows loading files, please wait.
4. In the User Interface it will show you some options to select. Once the Install screen comes up look on the lower part select Repair Your Computer. If will ask you to do Startup Repair, please do start up repair. If fails try the System Restore. If fails then step 5;
5. If you have important files in your HDD then back up your files first. After backing up of files you can now install the Windows OS. Here is the process in installing the Windows OS. Insert the Windows OS disc, restart the laptop, keep tapping F12 on Dell screen, on boot menu select CD/DVD ROM Drive.Install the Windows OS. Just complete the installation.After the installation install the laptop drivers.

You should see a touch pad icon in the task bar. Right click it and disable device in the device select tab. Good luck. Let me know how you made out, and please rate my answer.