Highgfx support! Yes, finally!
I've loved Highgfx ever since I found it years ago, but the flickering meant it was unusable for any length of time, and this is the first flickerfixer I know of to support it. Thank you, you just made my day
Just gotta start saving now ready for september

When I created HighGFX back in the 90s. I used the good Idek 5017 multisync monitor for it.
Later on I got my hands on a CompServ AGA FlickerFixer for the A4000.
This FlickerFixer is also able to push the frequencies up to 54 Hz / 44kHz.
With the new IndivisonAGA FlickerFixer the frequencies are higher and the quality of the image is also better.
(Taking raw picturedatas directly from the chipset)