For best results DISABLE THE GODDAMN MODCHIP DAMNIT !!!
Now seriously... The problem here with Open PS2 Loader is that for compatibility reasons, it allocates certain areas of the PS2 memory which are not used by games but are used by mods like Matrix or DMS chips to leave an system handle which implement persistent functions such as ATAD and video mode patchers. The modchip software conflicts with OPL and other newer omebrewn programs, making them difficult to use.
Honestly I removed the modchips I had on my consoles and I DO NOT MISS THEM AT ALL.
FMCB is ALL YOU NEED for your homebrewn needs.
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)