MSn On StRiKE

My MSN has decided to go on strike on and off depending on it's mood...

I am unable to log and have to resort web messenger which sucks basically coz the other party whom I am chatting with can't see my replies or only see them like hours later -_-III

Why? Why? Why???????????????????

On a 'good', I cant log into my normal msn for like half a day and voila, i can log in the next hour. So tell me...

1) it's my msn account that has probs?

2) my comp has probs?

3) my msn messenger throwing tantrums?

Oh yah, i can log into msn normally on my colleagues comp -_-III