why my optical mouse cannot function sometimes and sometimes can function? i am using windows XP

your optical mouse may be dead ...

my englist is poor

你的鼠标处理将死状态!

目前表现为电脑假死...其实只是鼠标动不了而已

u run too many progammes or some big progamme [such as photoshop ]and yr system is busy with the progamme
it will be ok if you wait some seconds