Credits has been forked. Please download the new Windows QT wallet here:
http://www.mediafire.com/download/hb...its-Qt-WIN.zip
How to fix Credits fork:
1. Install the new QT wallet here: http://www.mediafire.com/download/hb...its-Qt-WIN.zip
2. Go to Windows start menu and in search type %appdata% go to roaming directory and Credits in (~AppData\Roaming\Credits\)
3. Backup your wallet.dat file somewhere like your Desktop.
4. Delete old ~AppData\Roaming\Credits\ folder. Just delete everything.
5. Start new Credits-qt and the blockchain from correct fork will download.
6. Close the wallet program and then replace the newly created (empty) wallet in the ~AppData\Roaming\Credits\ directory with the old one you saved.