I have a 2010 macbook pro which will not load past white loading screen.  What can I do?

Hi
Can anyone advise what to do?
The laptop has not been dropped but before this happened the internet wouldnt work on it?  It has been faultless til today.

Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

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      Manufacturer:          SMP
      Device Name:          bq20z451
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      PCB Lot Code:          0
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      Hardware Revision:          000a
      Cell Revision:          157
      Charge Information:
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      Display Sleep Uses Dim:          Yes
      Reduce Brightness:          Yes
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      Wattage (W):          85
      Revision:          0x0000
      Family:          0x00ba
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      Charging:          No
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    I have a mid 2010 15" Macbook pro with Lion installed.
    I was running off battery, and I went to plug in a firewire cable, not plugged into anything, and when I inserted it, the computer shut off.
    The computer would not turn on again without being plugged into the AC adaptor. The magsafe charger shows green, but the computer says not charging. The battery is showing 57%, but the indicator lights will only light up when AC charger is connected..
    I have let it sit off, and plugged in for a couple hours, and nothing chages, and let it sit overnight not plugged in, but nothing.
    I have read other forums about the same issue,, it seems like its a common issue, and some have said what it could be, but no one said what it IS.
    I have tried resetting the SMC and PRAM, but to no avail.
    When i plug in the AC adaptor, the computer immediately turns on (which I find kond of funny), and I am able to turn it off normally, and it will stay off, and I can also turn it on if the charger has been connected from pervious.
    Below is my power information.:
    Battery Information:
      Model Information:
      Serial Number:          W0013PVDXBX0A
      Manufacturer:          SMP
      Device Name:          bq20z451
      Pack Lot Code:          0
      PCB Lot Code:          0
      Firmware Version:          201
      Hardware Revision:          000a
      Cell Revision:          157
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      Fully Charged:          No
      Charging:          No
      Full Charge Capacity (mAh):          5956
      Health Information:
      Cycle Count:          395
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      Battery Installed:          Yes
      Amperage (mA):          0
      Voltage (mV):          11638
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      Display Sleep Timer (Minutes):          5
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      Display Sleep Timer (Minutes):          3
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      Wake on Clamshell Open:          Yes
      Display Sleep Uses Dim:          Yes
      Reduce Brightness:          Yes
      RestartAfterKernelPanic:          157680000
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    AC Charger Information:
      Connected:          Yes
      ID:          0x0100
      Wattage (W):          85
      Revision:          0x0000
      Family:          0x00ba
      Serial Number:          0x00b9468c
      Charging:          No
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    I have a Macbook and I left it unplugged. It started up slowly when I plugged it in again, but it seemed fine. Once it started charging I shut it down so it would be easier, but now it will not go past the grey screen with the apple. What do I do?
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       DALE

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