MSN不工作

我可以在hotmail和ebuddy上都登录我的帐户，就像我无法保持登录状态一样，我可以登录约10秒钟，然后无论我什么时候尝试它，它都会自动注销我，仅在我的计算机上，我已经做了尝试更改密码和重新安装它所说的所有事情，我已经扫描了我的计算机很多次，每次有人清理干净时，我都可以帮助我

i can sign into both my accounts on hotmail and ebuddy everything like that i jsut cant stay signed into actual messanger, i can log in for about 10 seconds then it will sign me out automatically no matter what time i try this, its only on my computer, i have done everything that it says to try about changing the password and reinstaling it i have scanned my computer many times and its came up clean each time can someone help me