我既msn history突然無晒 點解!?

did u check the your history setting in the preferences?

have you set the auto delete history options?
msn will auto delete for, older than one week, one month and one year, is you have start this option. Just set it -NEVER-.

Hope this help...

2007-08-04 16:55:50 補充：
tools > option > messages > message history