Darryl,

have you really tried this setup?

I think the LCD1_Disable and LCD2_Disable Pins on the PIC would have to OpenDrain to allow this to work properly.

Setting LCDx_Disable High will set the E Input of tha attached LCD High and it will stay High, regardless of the state of the E Output of the PIC.
So the LCD will never "see" a falling edge on E.

regards