Please help!! Only first 4 letters shown in categories name in a second language

Please help!
We use Zen Cart 1.3.8a
When I try to create new categories in English and in Russian, English Categories names are just fine but in Russian the site showes only first 4 letters of each category.........
When my friend from Russia tipes in a category name - it works fine and the whole name is shown.
We cannot undrestand what the problem is. When I installed ZenCart for the first time I was able to create categories and product names in English and in Russian and they were fine - long names as I wanted.
But now we installed ZenCart third time I can only see first 4 letters of the category or in the name of a product in Russian and that's it......
What happened? Please help! What to do?

I believe the database field length is limited to certain number of chars, and since those languages use more chars than English it may fill up the field. There should be topics addressing that issue in the forum, you can use phpmyadmin to change the category name field in your database.