im a kinda newbie to PSX emulation, i just got Grandia, and got it working fine, but every 30secound it starts to skip and shudder, could this be lack of ram? im running the ISO version not CD.
here what im using:

epsxe 1.6.0
video - Pete's D3D Driver 1.47
Sound - Eternal SPU Plugin 1.41

im on XP, Intel 3 and can run Ragnorok and other gd games.

Any help will be greatfull