I have been working converting a VB6 app to vs2010. i had a form set up with a crystal report viewer, and after many attempts i found some code that i wanted to try.
I deleted the form and added a clean one and when i went to add the crystalreport viewer it is no longer available, it is greyed out.
The project is set to .net framework 4
references list shows all crystal options
i uninstalled and re-installed and at end of install answered yes to install 64 bit runtime all installed with no errors.
why would this suddenly stop working/