No problem, I wish I could help you further. Looks like HHTurtle was right and it has nothing to do with the patch. Or perhaps there are more than only one version of the patch on the net:
That's right. I don't know why some people are having troubles with the patch, everything has been working perfectly for me. It seems that each PSP is a whole different world :D
I have a PSP too and it looks good to me without any extra modification. Maybe there is more to it, perhaps the software system version has something to do too.
It is explained here by both JamRules and SkyBladeCloud: http://gbatemp.net/threads/sol-trigger-english-translation.346809/page-12#post-5016522 I havent had any problem with save/load screens, though.