Lithuanian font

Do you know Lithuanian? Did you work with text in Lithuanian earlier? If not, I strongly discourage you from entering big amount of text manually - most likely you'll make a lot of mistakes.

I guess, client supplied you with body text, and all you need is to place and format that in InDesign. For this task you don't need to have/install anything extra (like Lithuanian keyboard), unless fonts you're using  include Latin extended 1 character set, that said, effectively support Lithuanian (along with Croatian, Czech, Estonian, Hungarian, Latvian, Polish, Romanian, Serbian, Slovak, Slovenian and Turkish).

Here is some fonts you likely already have installed in you system, and which fully support Lithuanian:

Arial, Calibri, Cambria, Candara, Comic Sans MS, Geometria, Impact, Minion Pro, Myriad Pro, Nyala, Segoe, Sylfaen, Tahoma, Times New Roman, Verdana, and more.

All Open Type Pro fonts support Lithuanian. You shouldn't have any problems with the fonts mentioned above.

If you must use some special 'branded' font, and you have problems with certain characters, just ask your client for localized version of the font.

So I second to Test Screen Name:

What font do you use?

And what OS?

You say you can’t get them to work. What font do you use, and how do you try to enter the characters?