I fixed it as soon as I wrote the post. I'll send you the mk-MK.php file, so could have it in your collection of translations :)

Mario Kayel wrote:You must save your translated file without the Unicode Signature (BOM). Maybe it helps if you use the Russian file (ru-RU.php) as the basis for your translation.
If the problem remains, please email your language file (mk-MK.php) to me and I will have a look.
Email to This email address is being protected from spambots. You need JavaScript enabled to view it.

I installed MAMBWeather on my site, and since my site wasn't English, i grabbed the en-GB.php file, translated it to Macedonian and renamed it to mk-MK.php. This was the result:

s141.photobucket.com/albums/r63/Devil_Lock/MAMBWeather.png

The parts that are underlined green can be edited in the administration section, and they work just fine, but the module language issue remains.

Any suggestions on how I should fix this?

Running XAMPP v1.7.1 in Windows XP SP3.