Acer TravelMate 2300 Notebook "norton free trial 90 days" Questions

...norton free trial version has expired. 1.Do I have to uninstall it before downloading another antivirus? I know 2 antivirus should not run at the same time but since this has expired and my computer ...

Norton AntiVirus 2006, as well as CyberLink PowerDVD, NTI CD-Maker Gold, and Acer's own performance, recovery, and security tools. And the PC does offer good expandability. Two RAM slots are free,

...Norton, which I did not use before anyway. Any suggestions on what to do? I am currently using Recovery Manager and recovering to factory conditions for the 4th or 5th time, the last two times I get ...