There’s something that’s still making me ponder:
Whenever I addon a new domain, with a new installation of wordpress in a new directory, it will somehow affect my permalinks in my previous installations of wordpress. What I am touched is, the errors were reported to me from kind readers of this blog. If not, i wouldn’t have known what had happened to my rss feeds and my comment form etc..
Right now, the problem has been solved. I hope it will not occur again.
Thanks once again for those who informed me earlier. =)
It might be caused by a conflict with your plugins? Or something about your config files. Anyway, I am glad comments can be left here again :)