This error occurs when you launch attempt to save an Excel workbook under various different circumstances. This solution has been specifcally tested on Microsoft Excel 2007 running on Windows 7.
SOLVED: This error occurs when you launch Microsoft Excel 2007, 2003 or 2002 following the installation and subsequent uninstallation of a Sage product such as Sage Line 50 Accounts & Sage Instant Accounts.
SOLVED: Cannot Connect to Clipboard error when using Microsoft Office while connected to a Windows 2003 Server via Remote Desktop Connection. Hotfix download.