Hello!
I have e big problem with cps2 roms.
Every other roms work fine (cps1, etc...) but everytime I start a CPS2 rom I have huge graphic glitches.( colored vertical lines, sometimes on sprites, sometimes on the background).
I tried o lot of solutions: new SD card (3 times

), changing options (software, hardware rescaller, no rescalling, every variables of overclockin) fresh installs... But no changes.
Another person is getting the same bug on this forum: http://caanoo.forumactif.org/t2387p15-cps1_miniset#18064
And as he speaks english he could explain this bug better than me
