I am using windows xp pro. I am 3 accounts. 1 for my parents, 1 for myself and 1 for my younger brother and sisters. I Using cable with a 1 Gb limit usage per month. if over the limit, internet copnnectio will change to 28.8k . I am sick of my bro and sisters. The download a lot, on each month less than about 15 days, they finish the limit. I am so sick of it. I only check mails, need like 5 mins (sometime smore than that!) is there any software to make internet slow down?