The first problem in Total Commander 8.50 beta 4 (and older 8.50 betas) is improper display of uppercase and lowercase letters and names of drives after you enable the DrivesShowUpcase=1. see the attached image
The second problem in Total Commander 8.50 beta 4 (and older 8.50 betas) is non-translated into the local language extra items shown in the drive combobox dropdown when you select ShowExtraDrives=3. see the attached image
[face=tahoma]LICENSE NUMBER: #101897 Single user license (since: 6th February 2004) CURRENT VERSION: Total Commander 9.00 beta 12 (released: 31st August 2016)[/face]
a) This option only applies to drive letters, not to UNC paths like \Server\c or \Server\c$, because TC cannot know in this case whether 'c' is pointing to a drive root, or some subdir named 'c' on the target machine.
a.) Please look at the name/description of the partition with the option DrivesShowUpcase=1 - generally the name is displayed with the use of major and minor characters. see the attached image
b.) In my opinion the beta phase should also include the pre-language translation of the new features of Total Commander.
[face=tahoma]LICENSE NUMBER: #101897 Single user license (since: 6th February 2004) CURRENT VERSION: Total Commander 9.00 beta 12 (released: 31st August 2016)[/face]
The label is shown in all lowercase in the header to save screen space. The Alt+F1 dialog shows it as stored. It has nothing to do with DrivesShowUpcase=1.
Necroposting here because I think it's the best place to change it. There are few topics on this forum regarding this (search for "label lowercase"). We're on version 11.50 and it's still the same as it was 10+ years ago. How much "screen savings" are we even talking about, with 1920px screen width being most common on PC, that's a lot of screen space. Here's a comparison in 4K with 150% dpi scaling (take a note of small "a" added in 1st one to make it look like uppercase)
It's not that big of a difference to even consider "lowercasing" those labels just to save few pixels. I think this should be configurable by user, on even better, change it so by default it shows disk label as it really is. Right now a label with mixed case will be shown as it should in mixed case. But a label in uppercase will be shown in lowercase. Drop down box already shows label in proper case.
see the attached image 
