Shifter Behaviour

[ijor]

You have the most common SHIFTER version. Extremely unlikely that would be the problem. It could be other issues specific to the machine. Conceivable older GLUE (-38 or -20). Post a high rez picture (or two) to see the whole motherboard. Which TOS version are you using? US or Euro?

[alexh]

While it won't diagnose the issue you could try "Photochrome" which uses techniques similar to spectrum512 to get high colours

https://www.leonik.net/dml/sec_pcs.py
https://codeberg.org/zerkman/mpp

[GadgetUK164]

You have the most common SHIFTER version. Extremely unlikely that would be the problem. It could be other issues specific to the machine. Conceivable older GLUE (-38 or -20). Post a high rez picture (or two) to see the whole motherboard. Which TOS version are you using? US or Euro?

Using UK version of TOS 1.04. I will check what version of GLUE it has!

Everything in general works on the machine - just those higher colour depth "tricks" that try to show box art on PP's HDD adapted games.

[Cyprian]

On this STM - stock CPU, I see the same type of issue where the "box art" screen is messed up. What was different about the STM - were later modifications done by the time we got to the STFM which means PP's technique of trying to display box art wont work?!?!

I'm curious what it looks like. Could you post a picture?

[prog99]

Thinking about it a bit, I once had an STM with a suspect glue and various sync related effects would act really strangely.

[alexh]

My 520ST (no F, or M) is on my desk at the moment. If you give me the name of a PP HDD adapted title that you see corruption I will try it.