I bought an RGB scart cable to connect my Atari ST to a modern monitor.. Its a cable that is sold in UK that in one end has the ATARI ST monitor out connector and on the other a SCART connector   The cable worka on my 520STFM and 4096ST but on the ATARIb 265ST and MegaST II i get white screen.. (all computers work well on normal ST monitor)..   Does the MEGA ST or the oldest 256ST use different pinouts?   Thanks