There appears to be a bug in the 2011 SP1 when using a digital waveform where the plot names are assigned dynamically using a property node. After the update, the names to not reflect the changes until the panel is dragged off screen or the Labview program is stopped. The problem appears possibly to do with using multiple ports (more than 8 plots displayed)
I had tried seveal ways to work around this problem and the only fix I found was to use the Visible property to turn the graph off, then on again. This appears to force a redraw but on the down side, the graph flickers so it's not a clean look.
