Hi,
I have symantec anti virus and it doesn't seem to be doing a good job of keeping my computer clean. Im going to remove it and install Avast! AV. What do you guys think? Will Avast! use up less recourses than symantec AV? Also what can i do to get this computer running faster? Mozilla firefox takes literally like 30 seconds to a minute to open up and startup is a pain!

Thanks for all the help,
XxChronic2007xX