I have Norton Internet Security on two computers, Avast Anti Virus on another one. After the last NIS version update I started having many problems with my PC's running on AMD processors, Windows 7. Problems were with Google Chrome mainly. Slow page loading, IE freezing, distortion of letters/lines, unable to open some pages, etc. All of these were not happening before. My PC running on Avast is not having any issues. This became so bad that I had to uninstall NIS on one of the PC's and install Avast instead so I can use it.
Any ideas/solutions will be appreciated. I like to keep NIS since I paid for the service, but can't use it now.