We have just upgraded from 6.2 where we pretty much ignored reporting due to it's weaknesses and moved to 6.3.

I am just having a play with reporting now and have kind of got the hang of the trail and error work required to get a Report Part formatted reasonably well. The one issue I am having is creating a CPU and Memory usage line chart. 

Can anybody point me in the right direction as I am stumped at the moment?