Open PS2 Loader Not Booting Up

i have updated my ps2 loader, from version 0.8 to 0.9.3 and it no longer boots up, i just get a blakc screen...

From what i understand the installation is simple, just place OPL folder in the memory card you will be running it from...

Any ideas?

I saw somewhere that the config isn't compatible from older version of OPL, with the Open PS2 Loader 0.9 version... But i can't find how to delete the config file, or rather, where to find it.