Bitcoin-Qt frozen catching up/sync with Bitcoin in new wallet I downloaded Bitcoin-Qt, got it running, had 15 weeks or so left to catch up (sync) when I purchased some bitcoins and had them sent to my new wallet.

Then to my horror, Bitcoin-Qt has frozen with four weeks to go. It has been running 48 hours without any change in changed blocks left. I have restarted my computer, rebooted the modem, all the simple things but no love.

What can I do to access this wallet? I'm new to all this. I only ever used my online wallet address before.
If you still have the wallet.dat file from the bitcoin-qt installation at the time got the wallet address that you sent the money to you can use that with a new bitcoin-qt installation to try to make it work. If you don't have that wallet.dat file anymore the money is lost.

As for the problems downloading the blockchain, are you sure you have enough space? It's about 12 GB now. It sometimes take a very long time to download and may just look like it's sitting around for a while doing nothing, then pick up again a while later.