[Tiger]Can't input anything into textfields on solaris10 by JRE1.5-B32

Steps to reproduce:
1.On solaris10(build46),Mozilla1.4-12,JRE1.5_b32, on solaris10 CDE english locale.
2.Open mozilla and launch applet's demo, such as Dither Test, Arc Test,SpreadSheet.
3.Can't input anythings, and can't move mouse's cursor and can't delete character.