Like I said. It can take a few days. Your QT has to download & verfy every singel Block.
Another Option would be to export the private Key and import it into a new Wallet.
To do so, simply go to help--> debug -->console.
If you have already encrypted your wallet. Tipe:
walletpassphrase "your walletpassphrase here" 600
dumpprivkey [Address you have transferred the coins to]
If not, tipe:
dumpprivkey [Address you have transferred the coins to]
Now you get the priv. key.
Note it.
Make a new Wallet a blockchain.info. There is an import option somewhere, where you can import the priv. key.
Transfer the coins to your new electrum wallet, or keep using the online Wallet (not recommended).