Oh, this is a genuine request for technical support. Ok. My bad.
I'd suggest rebooting your devices, and ensuring they're powered up properly.
From there, you may need to update your drivers for those devices. You might need to download upgraded font packages. You will also need to load them.
Unfortunately, your request for assistance does not include the make and models of your devices, so I have no means to determine if such updates / upgrades are available in your market.
If these suggestions are not helpful, please contact the tech support divisions, for the devices in question.
If you find that you're unable to procure updates / upgrades for your devices, that will allow you to view the files to your satisfaction, you may need to purchase a newer device. There is no guarantee that these newer devices will view the files to your satisfaction, but I believe there's a good chance that this would be the case.
If after contacting legitimate tech support, you're still unable to view the files to your satisfaction, my experience is that hard copy versions never change user interface. Books from 100's of years ago still function as well today as they did when they were bound. The "point and slide" method of turning pages is very similar to "swiping" a mobile device, and has a satisfying sound that accompanies it. I feel the book route is a highly satisfying method of intaking information.
Hopefully, this has been more helpful to you. Still admiring your style.