Yesterday we had StereoMike release an updated release of DoomPSP and today with the help of our great members at PSP News and the DCEmu Homebrew Network with detailing any bugs to the coder himself, Stereo Mike has posted on our forums a new fixed release of the Doom Port.
Heres what he posted:
I've found the bug with the screen alignment and the music volume so i'm releasing a fixed version.
Changes in Doom-PSP v0.04 S.S b6 fix
-Fixed problem with screen alignment
Was a problem with the memory aligment of the texture.