IE 8 cache not clearing

I run CCleaner weekly but it does not seem to clear all the data in my IE cache. Is CCleaner suppose to do the same thing as if I went to IE's Tools, Internet Options, Delete, and check all boxes to delete all browsing history (temporary internet files, cookies, history, form data, passwords, InPrivate filtering data) ?

What is your operating system?

Is there a particular item you notice that you think isn't getting cleaned?

Running XP Pro. How can I check which item is not cleared? The issue has been with Yahoo mail. Everytime I have a problem and contact them they tell me to clear my IE cache and then Yahoo mail works correctly for a while. When I manually clear the IE cache, a small window opens that indicates data is being deleted. Sometimes that window is open for a second or two. Other times it may stay open for 30-40 seconds. I have the box checked in IE8 that says "Empty temporary internet folder when browser closed" but that seems to do nothing.

f6bd4582231499.gif

See the picture above, does CCleaner clean them when you "Run CCleaner".