There is or was a useful little routine available called
<Quickres>.  It can be loaded when required and ANY screen or
colour resolution may be selected - without rebooting. You just
have to hold your breath for a few seconds whilst the black
screen of death appears for a few seconds during changeover! But
it works well  - for me on my PC.
I use it less now - Golive has facilities for considering the
problem of resolution.
Rgds

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