displaying data

Hi everyone

I have a really basic question. I am displaying mean and standard deviation as a function of time by means of a line plot with scatter point circles representing the std. I am doing this for a number of different systems on the same graph so that they can be easily compared, however lots of the values are very close together and their standard deviations overlap which means the graph looks messy with lots of overlapping circles. Any idea of a way around this? Is there another way I can represent my data set