After I installed reader 11 I cant open any pdf files. Reader opens but no files appear then it shuts down after a few seconds.
Can you open Reader by itself? If so, try disabling Protected Mode [Edit | Preferences | Security (Enhanced)].
If that doesn't help, please let us know your operating system.
No it wont stay open longer than 5 seconds I am runnings windows 7
Try this: use Windows Explorer and navigate to C:\Program Files (x86)\Adobe\Reader 11.0\Reader, then double-click on Eula.exe and accept the license agreement.
thanks all working now