Unable to open ANY pdfs after installing DL 7.4M2 on 8.1

[drewg181]

I have a Surface Pro running 8.1. Recently purchased a Targus 3.0 ACP70US dock.
As soon as I install DisplayLink 7.4 M2, I lose all ability to open PDF files. The METRO READER app fails with a Remote Procedure Call failure, and Adobe Reader Touch Fails with an App failed to open error.
If I uninstall the DL 7.4M2, these apps both start working again. I have a clear cause and effect here.
Anyone else seen this behavior or similar and know were to turn? It happens regardless of the user account in use, joined or unjoined to a domain.

Scratching my head!

[Wim]

I've just tried this on a Lenovo Helix and didn't find any problem. Does it only happen with certain PDFs?

Wim

[drewg181]

The problem is not with any specific PDF, it's with the apps themselves. READER will just minimize with no "browse for a file" dialog, and Adobe Acrobat Touch just craters.
I have even taken this PC back to factory, which I am going to do again.
I have to solve this as I need to move my boss from 8.0 to 8.1 and she is dependent on PDFs..... and she has identical Surface Pro Targus 3.0 dock set up.

[ocwl]

I had the problem with Adobe Reader Touch when I installed DisplayLink 7.4. Other Metro apps would also crash. Problem was resolved when I updated to DisplayLink 7.5.