thank you Jim!
I have both installed! I guess I will unistall FSX and all addons as PMDG support suggests? I may have a corrupted file!
I tryed before to copy and paste my PMDGS from another computer! After that I purchased the PMDG again, I don't know if this may have caused the problem?
I Also bought the Super 80 from flight 1 and when I install the Prfesional plane and want to run it FSX crashes! in the classic one the cokpit gauges are not working properly eitheir! I decided to remove that program to!