Re: Upgraded to Crystal Reports 11, Reinstalled CRD
What is more likely is that you also installed another application which comes bundled with the CR 9 developer dlls. As they were on your PC CRD just went ahead and used them.
You need to have the dlls actually physically on your PC for CRD to be able to interrogate your rpt files.
CRD doesn't come with these dlls so you have to get them yourself by buying and installing Crystal Developer.