Buzzer sound and distorted graphics while playing games

I tried to play a small game using NES emulator.Upon starting the game I hear buzzer sound and highly distorted display in game window.

I also tried a game on SNES emulator and it played fine although I could not hear any sound as it displayed the following error "Failed to initialize XAudio2".

Suspecting driver issue i tried updating driver for my display adapter ATI Mobility RADEON HD 4650 through device manager but it reported that I already had the latest.

Is it something to do with corrupt directx? please help I do not know much about graphics cards?

Windows 7 32 bit

I'm signing off for the day. will check back tomorrow.pls do post ur suggestions.

Audio driver installed and up to date?

stormy13 said:

Audio driver installed and up to date?

Click to expand...

yes .. tried registry cleaners but no avail

some emulators don't support every game, i'd try nessie, seems to be quite stable and support most games, and has pad support as well, not sure if it works with 7 though.