Cant open wallet.

[Rawrooo]

I just tried to open up my wallet and get an error, restarted and reinstalled but still wouldn't load both time, I do have my wallet.dat saved but yea its just wont load.

EXCEPTION: 11DbException      
Db::get DB_PAGE_NOTFOUND: Requested page not found
C:\Program Files(x86)\bitcoin\bitcoin-qt.exe in Runaway exception

I'm new to this so no idea, i tried to read up on it but cant work it out, help please  

[Stephen Gornick]

I just tried to open up my wallet and get an error, restarted and reinstalled but still wouldn't load both time, I do have my wallet.dat saved but yea its just wont load.

When you say that you reinstalled, does that mean clean -- with no blockhain?

The latest version of the client is less accepting of a bad wallet whereas the older client didn't catch it.   Was that possibly what happened (wallet worked fine until you started using the latest?)

There have been reports that -upgradewallet will repair it, even though that's not what -upgradewallet was meant to do
 
 - http://bitcointalk.org/index.php?topic=89173.msg986426#msg986426

[VelvetLeaf]

Backup everything in Bitcoin's directory, including the precious wallet.dat
https://en.bitcoin.it/wiki/Securing_your_wallet#Windows_2

Then try deleting the addr.dat, this guy said his version is corrupted and related to that.
https://bitcointalk.org/index.php?topic=66912.0

If you still have the same error, try to delete everything beside wallet.dat and start downloading the block chain again.