The version of my IE is 7.0.5730.13. It's been so slow to almost dead recently. It also uses too much resources so my computer is almost dead too. For some links, the content just never showed up. Tried Firefox and it worked just fine.
The problems are not gone. I disabled all the add-ons on my laptop which runs Windows Vista home edition, but IE's still very slow and some links didn't show content for a long time without any error message (no problems using Firefox).
Vista updated itself (twice?) recently(within about one month). I noticed that there's no these problems before the upgrades.