How to change text length in drop down menu?

[proman2008]

HI I am interested how to changed text length in drop down menus?

 

I got the page in UTF-8 coding but texts written on my locla languge are not full shown? only some letters and the some symbols like ( +%/) and so on

 

any idea? <_<

[proman2008]

Hallooooooooooooooooo

 

can anyone help me ????????