oh, I had no clue. that's not a bad solution indeed.
#1) on apollo forum a happy gold 2.7 user
talks about his 1st impression.
and no, he did not test the calculator it seems
#2) if you feel the need to downgrade to Gold 2.5 and experience the
no mouse pointer issue,
with SAGADriver.v1.0 installed, goto Devs:Monitors and set the tooltype of vampiregfx -> SoftSprite=YES
==> Hold SHIFT key while rebooting, in the state of no mouse pointer, it will boot into PAL mode.