I'm sorry, I left the first few lines out that are critical.  Please paste this in and see how it does.

Brett

CurrentFeed = GetOemDRO(818) 'Get the current feedrate.
PlateThickness =0.059
ProbeFeed = 5

Code "G90 F" &ProbeFeed

If GetOemLed (825)=0 Then
Code "G4 P2" 'Time to get to the z-plate
Code "G31Z-5 F" &ProbeFeed
Code "G4 P0.25"
While IsMoving()
Sleep(100)
Wend
ZProbePos = GetVar(2002)
Code "G0 Z" &ZProbePos
While IsMoving ()
Sleep(100)
Wend
Call SetDro (2, PlateThickness)
Sleep(100)
Code "G4 P0.5" 'Pause for Dro to update.
Code "G0 Z0.25" 'Change the Z retract height here
Code "(Z axis is now zeroed)"
Code "F" &CurrentFeed
Else
Code "(Z-Plate is grounded, check connection and try again)"
Exit Sub
End If