normality distribution in data - real-time PCR (Jul/11/2007 )

Hi all
I am analysing six different treatments with n of 6 or more for real time PCR
When using Sigmastat, it says normality failed.
what can be done to make sure that normal distribution is achieved.
i know that increasing sample size is one way to do it

listing down my questions?
1-can outliers be removed without justification
2-would that help achieving normal distribution
3- can someone explain normal distibution in an easier way

thanks
any suggestions n advice is greatly appreciated. thanks for ur precious time on this topic

Sometimes a ln-transformation does the trick.