I get the error "Cannot display the folder. Errors have been detected in the file . . . ncidata.com.pst" when I click on one folder in an account. Sometimes, when I click on the same folder, I get the message ". . . ncidata.com.pst is in use and cannot be accessed. Close any application that is using this file, and try again. You might need to restart your computer.
I have restarted the computer and I get the second message again!
What can I do to fix this?