Gesendet: Samstag, 27. Juni 2015 um 23:09 Uhr Von: Ludger.Lenzen@gmx.de An: "Discussion of precise voltage measurement" <volt-nuts@febo.com> Betreff: Re: [volt-nuts] volt-nuts Digest, Vol 70, Issue 16 HP-419 I had the same issue, when updted to latest firefox 38.0.5. Then I checked and updated Acrobat Reader to latest version, now no problem anymore.