No sound on video taken with my digital camera PLEASE HELP

SOURCE: My Olympus Fe-190 camera won't let me take pictures, says "Write Problem"...?

the software that j6skopje suggested worked and found all my pictures

SOURCE: Digital camera won't take pic

HELLO NEWFIE,

YOUR CAMERA HAS A VERY COMMON PROBLEM THAT THE FE-210 HAS. YOU MUST PAINSTAKINGLY TAKE APART YOUR CAMERA PIECE BY PIECE. MAKE SURE TO CAREFULLY REMOVE THE SMALL SCREWS THAT ARE UNDER THE COVER PLATES FOR THE USB, VIDEO OUT AND DC INPUT SLOTS. ON THE RIBBON FOR THE FACE AND THE LCD, YOU MUST "LIFT UP" ON THE RIBBON LOCKS. SOME ARE BLACK AND LOOK LIKE A TAB AND SOME ARE WHITE AND LOOK LIKE A "PUSH IN" TYPE OF LOCK. THEY BOTH SWIVEL "UP", NOT PULL OUT!!! RETAIN THE WHITE LOCK AS IT WILL NEED TO BE PUT BACK IN THE SAME WAY. ONCE THE FRONT COVER IS OFF, REMOVE THE LCD THE SAME WAY. IT WILL HAVE 2 SCREWS IN OPP. CORNERS AND A RIBBON WITH A BLACK LOCK. ONCE THE LCD IS REMOVED, REMOVE THE MAIN BOARD BY REMOVING ALL OF THE SCREWS IN THE CORNERS AND THE ONES THAT HAVE "GOLD" AROUND THEM. THERE IS A SMALL SCREW UNDER THE DOOR FOR YOUR BATTERIES, DO NOT FORGET TO REMOVE THIS ONE ALSO. NOW, LIFT THE MAIN BOARD UP SO THAT YOU CAN SEE THE SMALL GOLD GEAR NEAR THE SHUTTER OPENING. TAKE A SMALL SCREW DRIVER, SUCH AS THE ONE YOU HAVE BEEN USING AND ROTATE THE GEAR. THIS WILL FIX YOUR PROB. NOW REVERSE THIS PROCESS AND YOU WILL BE UP AND SNAPPING.

SOURCE: zoom lense wont retract

The problem you are describing is a problem with something in the lens assembly of the camera. It seems to have failed and needs to be replaced. Following are the instructions to send your camera to Olympus for service.

http://olympusamerica.com/cpg_section/cpg_servicerepair.asp

Olympus will charge a flat rate repair fee for this product if beyond the one year factory warranty or the warranty is voided. The cost is $73.85 plus your local sales tax. This covers parts and labor, factory cleaning and diagnostic check, 6 month warranty and the cost of shipping the product back to you is all included in that price.

SOURCE: olympus stylus 725 SW has gone blank

The problem you are describing is a problem with one of the chips in the camera that controls image processing. It seems to have failed and needs to be replaced. Following are the instructions to send your camera to Olympus for service.

http://olympusamerica.com/cpg_section/cpg_servicerepair.asp

Olympus will charge a flat rate repair fee for this product if beyond the one year factory warranty or the warranty is voided. The cost is $128.85 plus your local sales tax. This covers parts and labor, factory cleaning and diagnostic check, 6 month warranty and the cost of shipping the product back to you is all included in that price.

SOURCE: can't hear audio on video playback (neither direct from camera nor from pc)

This is because the camera is not capable to record the sound. The camera was not designed with any audio speakers to be able to record and playback sound recorded during movie mode.