IE8 start up slows down after Norton 360 V3 installed

Before when I clicked on the IE icon to start the web browser, it's pretty fast (Within 2 seconds). Since I installed Norton 360 v3 on my computer, it now takes at least 20 seconds to start my web browser. However, the speed of firefox 3.5.1 is not affected.

 

If anyone can provide some assistance in this it will be much appreciated.

 

IE version: 8.0.6001.18702

Operating System: Microsoft XP Pro (32bit) with SP3

CPU: Intel Pentium4 2.93GHz

RAM: 2GB

Before when I clicked on the IE icon to start the web browser, it's pretty fast (Within 2 seconds). Since I installed Norton 360 v3 on my computer, it now takes at least 20 seconds to start my web browser. However, the speed of firefox 3.5.1 is not affected.

 

If anyone can provide some assistance in this it will be much appreciated.

 

IE version: 8.0.6001.18702

Operating System: Microsoft XP Pro (32bit) with SP3

CPU: Intel Pentium4 2.93GHz

RAM: 2GB