After a routine mac 10 update I could not get into my parallels program and kept getting the error message "Unable to load Parallel driver". So I saw mention in other posting that reinstalling the software would help so I downloaded it from the parallel site (I can not find my original disk but had by numbers) and now I get the message "prl_client_app cannot be opened because of a problem." Please help. I use this for my business and I am at a
