I put my laptop on hibernate with SQL nav open.
When I start it again I was not connect to the network.
When I went to the SQLNav app the output window was showing
“Invalid class typecast” ad-infinitum
I could not close that output window, select another one or close the SQLnav …only task manager “end task”
Sometimes also with previous version when a connection problem occured also some message (another one I think) got ad-infinitum…