How long did it take to get from 475111 to 475893? When testing another coin I noticed that once the client forked, syncing slowed to a glacial rate (to advance a single block may have taken up to half a minute) and in the meantime the client was going crazy trying to resolve the fork (see https://bitcointalk.org/index.php?topic=604677 )

If your client is also similarly slow you may need to delete the blockchain db and start over. As a bonus this should relink all of your mined coins.

edit: I cannot see txid 86e772c87c27e37c76c65e02a470efee37a47ec39c0250e8fef686c964c63980 which lends credence to the possibility of you having forked.

Try in the debug console: getblockhash 475893

Hash value for block 475893 is c1e9f16f39ae96a14000d0c4300992454ee9ef752d937cfe1141cb0f18cce797 at this end. If your value is different, you are forked (or I am!)