Consider the following simple applet:

import java.applet.*;
import java.awt.*;

public class choice_cut extends Applet {

public void init()
{
    setBackground(Color.gray);
    Choice choice = new Choice();
    choice.setFont(new Font("Serif", Font.BOLD, 19));
    for (int i=0; i<101; i++) choice.addItem("Item " + String.valueOf(i) + " ");
    add(choice);
}
}

Running the applet in appletviewer or Internet Explorer doesn't show any errors, while in Mozilla and Firefox the opened choice size is too large: about 30 items or even more. If the screen resolution is 800x600 or less this may lead to some last choice items (98, 99, 100) to be inaccessible with mouse.