Hey guys, I have the same question:
Block Explorer shows a balance of 0.89,
http://blockexplorer.com/address/16s9vvyp5HMTW9Wa2AHQBHC4dAQaoB7xtibut the client shows 0 and no transactions, and it's d/l'ed up to block 135330 (latest)
I moved wallets around a bit trying to set up a secure one, maybe that has something to do with it?
Many thanks for any and all help.