These are script errors on the pages (and probably have nothing to do with IE or your system or your connection) and there's not much you can do about them - they happen sometimes. You can however stop or severely reduce the notifications. Go to Tools / Internet Options / Advanced and uncheck the box next to display a notification about every script error and also check the boxes next to both script debugging options to make sure they are disabled.
I don't think the errors are related (they are different pages) and I don't think you need worry about it or do anything beyond what I suggested above unless you begin to have more frequent or constant problems accessing web sites or staying connected or getting locked out - then post back again and we'll take another look at the situation.
I hope this helps.
Good luck!
Lorien - MCSE/MCSA/Network+/A+ --- If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.