“Excel is busy” or “Server Busy” in Crystal Xcelsius.

In November 2007 i posted an article on this error. Lot of users, including me, had a tough time resolving this issue. While browsing through one of the forums i bumped into this thread. Though of posting it and sharing. Looks like the resolution is pretty simple.
Uninstalling Business Contact Manager for Outlook 2003 caused the warning message to stop appearing. To uninstall the program do the following:
  1. Click Start menu > Settings > Control Panel, double-click Add or Remove Programs.
  2. Click Business Contact Manager for Outlook 2003 in the currently installed programs and updates list.
  3. Click Remove, and then follow the instructions on your screen.

Microsoft Article on “Remove Business Contact Manager for Outlook 2007”