In LV 2009 Waveform chart there is a issue between display format change(relative time/abs time format) with x scale style & vertical grid style.
Once the display format changed to the relative/abs time format then corresponding x scale type & x grid style properties getting affected. Bug fixed?
Try it in this order:
In Waveform chart set the X scale style type to 0.
Then choose X axis only Major Grid style type.
Then change the display format from floating point default to Relative time format.
Now X scale style type automatically changed to 1 but in properties page it is showing the chosen style 0 only.
Now If you change the Major Grid color from bright default green to ledoff color. Now that grid style also vanished.
