The display font on the menu bar, icons, drop down windows, are all too small can this be changed to a larger font or icon? Presently using Windows 10, and 4k monitor. All the other software is running fine. Only LR and Photoshop E have the small fonts.
Go to Edit > Preferences > Interface, where there should be a setting for font size.
Bear in mind that LR4 was designed before high resolution monitors became common, so you may find that the largest setting is not large enough.
Thanks. I have tried all the normal channels to increase font size and
this did not correct the problem. The rest of the program seems to
work fine, but I haven't worked extensively, yet. The one conclusion
you have made is also the one I have made: LR4 will not adopt to the
high res monitor. Thanks for the effort!