error in layout double grid: WGS'84 and (greek) GGRS'87

Discussion created by a.syggros on Feb 28, 2012
Latest reply on Feb 28, 2012 by MKennedy-esristaff
Hello everybody.
I am trying to create a map, drawn in (greek) GGRS'87 reference system, so I use this grid in my layout.
I have also added a WGS84 grid in the same layout and noticed (and double-checked) that this 2nd grid is wrong (about 300m).
The same error appears if I try to perform a transformation between the 2 systems without using the geographic transformation script.
As I haven't found a way to indicate this script in layout mode, it seems like a problem for ESRI to solve.
Any suggestions?
Thanks in advance,