Please clarify - is that eight hundred (800.000) or eight hundred thousand (800,000) ?

Have you tried running your wallet with -rescan from the command line?

Here is a full list of command line options and what they do:

-?                     This help message
  -conf=           Specify configuration file (default: cleanwatercoin.conf)
  -pid=            Specify pid file (default: cleanwatercoind.pid)
  -gen                   Generate coins
  -gen=0                 Don't generate coins
  -datadir=         Specify data directory
  -dbcache=           Set database cache size in megabytes (default: 25)
  -dblogsize=         Set database disk log size in megabytes (default: 100)
  -timeout=           Specify connection timeout in milliseconds (default: 5000)
  -proxy=       Connect through socks proxy
  -socks=             Select the version of socks proxy to use (4-5, default: 5)
  -tor=         Use proxy to reach tor hidden services (default: same as -proxy)
  -dns                   Allow DNS lookups for -addnode, -seednode and -connect
  -port=           Listen for connections on (default: 53591 or testnet: 43591)
  -maxconnections=    Maintain at most connections to peers (default: 125)
  -addnode=          Add a node to connect to and attempt to keep the connection open
  -connect=          Connect only to the specified node(s)
  -seednode=         Connect to a node to retrieve peer addresses, and disconnect
  -externalip=       Specify your own public address
  -onlynet=         Only connect to nodes in network (IPv4, IPv6 or Tor)
  -discover              Discover own IP address (default: 1 when listening and no -externalip)
  -irc                   Find peers using internet relay chat (default: 1)
  -listen                Accept connections from outside (default: 1 if no -proxy or -connect)
  -bind=           Bind to given address. Use [host]:port notation for IPv6
  -dnsseed               Find peers using DNS lookup (default: 0)
  -nosynccheckpoints     Disable sync checkpoints (default: 0)
  -banscore=          Threshold for disconnecting misbehaving peers (default: 100)
  -bantime=           Number of seconds to keep misbehaving peers from reconnecting (default: 86400)
  -maxreceivebuffer=  Maximum per-connection receive buffer, *1000 bytes (default: 5000)
  -maxsendbuffer=     Maximum per-connection send buffer, *1000 bytes (default: 1000)
  -upnp                  Use UPnP to map the listening port (default: 1 when listening)
  -detachdb              Detach block and address databases. Increases shutdown time (default: 0)
  -paytxfee=        Fee per KB to add to transactions you send
  -server                Accept command line and JSON-RPC commands
  -testnet               Use the test network
  -debug                 Output extra debugging information. Implies all other -debug* options
  -debugnet              Output extra network debugging information
  -logtimestamps         Prepend debug output with timestamp
  -shrinkdebugfile       Shrink debug.log file on client startup (default: 1 when no -debug)
  -printtoconsole        Send trace/debug info to console instead of debug.log file
  -printtodebugger       Send trace/debug info to debugger
  -rpcuser=        Username for JSON-RPC connections
  -rpcpassword=      Password for JSON-RPC connections
  -rpcport=        Listen for JSON-RPC connections on (default: 12789 or testnet: 22789)
  -rpcallowip=       Allow JSON-RPC connections from specified IP address
  -rpcconnect=       Send commands to node running on (default: 127.0.0.1)
  -blocknotify=     Execute command when the best block changes (%s in cmd is replaced by block hash)
  -walletnotify=    Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)
  -upgradewallet         Upgrade wallet to latest format
  -keypool=           Set key pool size to (default: 100)
  -rescan                Rescan the block chain for missing wallet transactions
  -salvagewallet         Attempt to recover private keys from a corrupt wallet.dat
  -checkblocks=       How many blocks to check at startup (default: 2500, 0 = all)
  -checklevel=        How thorough the block verification is (0-6, default: 1)
  -loadblock=      Imports blocks from external blk000?.dat file

Block creation options:
  -blockminsize=      Set minimum block size in bytes (default: 0)
  -blockmaxsize=      Set maximum block size in bytes (default: 250000)
  -blockprioritysize= Set maximum size of high-priority/low-fee transactions in bytes (default: 27000)

SSL options: (see the Bitcoin Wiki for SSL setup instructions)
  -rpcssl                                  Use OpenSSL (https) for JSON-RPC connections
  -rpcsslcertificatechainfile=  Server certificate file (default: server.cert)
  -rpcsslprivatekeyfile=         Server private key (default: server.pem)
  -rpcsslciphers=                 Acceptable ciphers (default: TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!AH:!3DES:@STRENGTH)

UI options:
  -lang=           Set language, for example "de_DE" (default: system locale)
  -min                   Start minimized
  -splash                Show splash screen on startup (default: 1)