Cant play ps2 backups, but can ps1's

[suggs13]

I have a magic 2 chip fitted on a version7. It will play originals ps2 & ps1 and also ps1 backups, but im just getting a quick white flash across the screen when it is trying to boot up, for ps2 backups.
Anyone got any ideas in simple man terms pse.
kev.

[charlie_ps2]

Mis-install. See my troubleshooting guide in the Factoids.