Norton Utilities - slow typing

I installed Norton Utilities last night and ran nearly all the utilities (defragmenting, registry cleaning, etc.).  Now every time I start a new internet browsing session, when I type anything (even an e-mail), the typing is very slow.  I have to go into the utilities and clean the browser to speed the typing up.  Does anyone know why this happens and how it can be corrected absent uninstalling Norton Utilities?  Thanks.