[Typo3] Another sorting problem

[Piotr Burda]

My site is in Polish, encoding iso 8859-2, when i`m sorting my adress 
table by town i`ve strange behavior when name of the town starts with 
polish character,
you can see it here
http://www.fuchs-oil.pl/index.php?id=151&no_cache=1&tx_pbfuchsdystrybucja_pi1[pointer]=1&tx_pbfuchsdystrybucja_pi1[mode]=1

town Srem (with accent on S), should be sorted after towns which name 
startw with S (without accent) but it is sorted always at the end of list.

How can i change it?

Piotr