I have just connected a Formac ProNitron 19900 to my beige 7500/100 mac.

The colours are awful - cool greys look like warm greys - too much magenta.

I have tried the adjustments on the monitior button and also adjustment in the 'Monitors & Sound' under Control Panels on the computer. Very little adjustment available here. Also, worringly, the monitor will only set to 256 or Thousands of colours and not millions.

The monitor was supplied with a 10 mode adapter. Does anyone know the correct settings or am I stuck with poor colour control?