My client got as far as 99.11% and than it hung on a particular block.

It took me about a week to get that far, and it's not great for the machine to be syncing, so I don't want to repeat the process.

I've rebooted the client several times, but it keeps hanging on the same address (I can give the number if it helps).

Is there anything I can do for it to skip, accept or ignore that block and continue and finish the sync?