crystal vs2010

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/
Larry RungrenDirector of TechnologyAsked:
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I assume you have the version of Crystal for VS2010?

Larry RungrenDirector of TechnologyAuthor Commented:
Larry RungrenDirector of TechnologyAuthor Commented:
This has been working fine just suddenly disappeared.  been on this project for 4 weeks! CAN'T AFFORD TO HAVE TO START ALL OVER AGAIN.

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No idea.  I am not a .Net developer so I haven't seen that as an issue.

Larry RungrenDirector of TechnologyAuthor Commented:
A simple system restart cleared up the issue????  Ain't MSFT grand?
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Crystal Reports

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