Norton AntiVirus 2011 make iTunes not working

iTunes "could not sync data to the iPhone because the iPhone disconnected" if Norton AntiVirus installed,after close iTunes  i can't open it again i must restart my pc again to reopen it again.after uninstall Norton AntiVirus my iTunes working perfect without error.

 

this error show if Norton AntiVirus 2011 installed in my pc this only happen on Winxp

 

OS:Windows XP with SP3

Norton AntiVirus 2010 version 17.5 + Norton AntiVirus 2011 18.6.0.29 with latest definitions

iTunes 10.4.1.10

I have using Ipod & Iphone