3.10 O.E problem

[jsed]

I have a problem with my 3.10 O.E Psp, I recently upgraded the firmware to 3.40 O.E and found that most of my game isos no longer loaded, I recovered back to 1.50 firmware useing the on button and the R trigger and reinstalled the 3.10 O.E only to find that the problem was now affecting this firmware too, There were never any problems before? does anyone have any ideas?

[Chameleon]

go to revovery mode and tweak some of the iso options ( power off, right trigger on boot up)

[jsed]

I have found the settings in recovery mode that caused the problem, it was the execute boot.bin in the advanced settings. Now playing with my 3.40 OE psp with a smile on my face again. Many thanks Chameleon, you sir, are a star.