I am using PCX2 1.0.0. I have installed everything. Audio is coming, but video is not there.
PCX2 is something which might not run on your computer but run on someone else's computer even though you might have better configs than that person.Its all about tweaking your PCX2. Read the faqs, readme everything that comes with the software.You should know what each function does and keep on trying until you get what you want.
Maybe your computer doesn't meet one of the system requirements.
try going through the FAQ to get an idea.
PCSX2 configuration guide
scroll to graphics section