When I am trying to load a CPTX file that is saved on my c drive- I get an error code- adobe captivate could not open "file name" ensure that the file is not already open, is not damaged, hadr disk has ssufficient space etc. None of these factors are true. I have to log off my computer and restart my computer and then the cptx item will load. The file is definitely not corrupted and I have plenty of space. trying to figure out what is going on?