There is a memory leak in the version of Crystal runtime export dllson your PC. Patch it up with all the hotfixes and service packs. If the problem continues raise a support incident and snd them a screenshot of the Help/About creen in Crystal and they will mae you an installation of the latest crystal dlls.
Hi,
The last time I had this I needed to install all the Crystal Reports service packs and hotfixes for the version of Crystal Reports I had installed. If you are still having errors after that you should send Member Services (memberservices@christiansteven.com) a screenshot of the screen you get when you go to Help > About Crystal Reports in Crystal Reports.