Safari all of a sudden very slow on one account

Question

I am running OS 10.6.8 and Safari 5.0.5 and all of a sudden Safari slowed to a crawl on one account.  It takes more than a minute to load a page.  Other apps are not having any problems.  After trying many things, including deleting Safari and reinstalling it, I read on another post to try and create a new account to see if Safari worked on that account.  Viola!  It works great on the newly created account.
What might possibly be the problem on my other account?  I did not make any changes.  However, I have several children who use the iMac and they might have done something.  I am not running any extensions.  Any suggestions would be helpful.  Thank you.

Answer 1

Update Safari >   Safari 5.1.10 for Snow Leopard
Restart your Mac after the update is installed then try Safari.
If Safari is still running slow...
From your Safari menu bar click Safari > Preferences then select the Privacy tab.
Click:   Remove All Website Data
Then delete the cache.
Open a Finder window. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following
~/Library/Caches/com.apple.Safari/Cache.db
Click Go then move the Cache.db file to the Trash.
Quit and relaunch Safari to test.
If nothing above helped, troubleshoot Safari extensions.
From the Safari menu bar click Safari > Preferences then select the Extensions tab. Turn that OFF, quit and relaunch Safari to test.
If that helped, turn one extension on then quit and relaunch Safari to test until you find the incompatible extension then click uninstall.