Can Bitcoin Wallets be fixed if they go funny?

Do I really have to unistall and reinstall and let it synch for another two days?

Can I somehow retrieve the block data before doing this?

Can anyone help?

Luckily it was empty.

Hi All,

I'm new to this whole Bitcoin thing, but I love the concept!  I have downloaded a Wallet and registered with Mt. Gox and Bitmarket (so far) and am keen to buy some bitcoins.  However, it seems so difficult to do. Is there anywhere online where I can buy bitcoins from a trusted organisation with a Credit Card or Paypal?  Am I missing something?  By the way, I assume Dwolla only works in the USA - is that correct?

Any help/advice/reassurance most welcome,

Cheers,

Madrigal