when clicking response the comment botton, mylot webpage will be dead, why?

The glitch you mention may have something to do with your browser trying to catch up with Mylot's html, sometime the code enbeded in certain Mylot webpage is incompatible with your browser, so it freeze. May be you need to try different internet browser or update to the newest version of your present browser. I think it happen to me once a while too. If it doesn't happen all the time, i wouldn't worry about it. Unless every time you need to post a comment in mylot, you have to close your browser to restart the freeze and log in again, then install a new browser and give it a try. That is pretty much i can think of right now.

A pleasant day Hanjianbo615, With reference to your main topic discussion, as far as I know, that situation do happens especially when there is a system time out. As maybe, the webpage is updating its main page. But, just try to be patient when encountering this situation. As I also encounters this. Another thing, perhaps, this thing is happening due to slow internet connection. Just try to look on other possible reason then from there you can build up a possible answer and a better solution.