Which version are you using? Did you use a release or the continuous build? Which operating system are you running? Lastly, can you provide a screen shot and/or details on the data and what you're trying to graph? Graphing usually works for people so something must be going wrong but without some leads I can't quite tell what it could be. The best thing might be a sample capture and details about what you were trying to graph so I can try it myself.
Which version are you using? Did you use a release or the continuous build? Which operating system are you running? Lastly, can you provide a screen shot and/or details on the data and what you're trying to graph? Graphing usually works for people so something must be going wrong but without some leads I can't quite tell what it could be. The best thing might be a sample capture and details about what you were trying to graph so I can try it myself.