Open SharePoint Designer and select a site from Recent Sites List and I get an error:
The parameter is incorrect
There is only one button OK, when I click that SharePoint Designer repeats the error. Previously to get out I had to open task manager and cancel the application. Now after clicking OK a few times I get three options (not exact words)
Close Application and check online for a solution
Close and Restart the Application
Debug the error
I have had this error before with other sites. Googled the error but did not find a solution or explanation. Any help appreciated.