General ⇒ Error when opening Output

[Appa]

Hello.

I have a little problem using \usepackage{mathptmx}, and that is...

When i use this line the PDF won't open. I get the following error "There was an error opening this document. The file is damaged and could not be repaired."

I know that is 'cuz this line, 'cuz when i delete it all works just fine.

Can someone please help me?