The mode selector dial on the top of the camera is stuck

Sounds like a loose internal connection somewhere. Service centre, I'm afraid.

Looks like a new camera to me. Can't you go back to the shop? or contact Casio, if there is still warranty o the camera?
Then again you could look if the dial was locked with a little screw, that you now lost. If it possible to lift the dial from its axe?
If so, you perhaps can fine a very little screw to fasten it again?

Set the mode dial to P and then press menu button. Move along the menu selector at the top of the LCD screen look at each one until you fine 'Clear All Camera settings.

Hello,
First you can select a desired camera mode by using the Mode dial on the top of the camera. Below picture is Mode selector.

Simply first press flash button which is shown in the fugure below.





Press a few times to the flash button. So that you set the desired flash position. Positions are shown below.

Now you can take a picture.

I think mode selector dial is not working in your DSC-W50 that is why camera is set on video mode.
Replace mode selector dial as mentioned in below image, part number is...

1-479-584-11 CONTROL SW BLOCK (SW110T) (for SILVER color)
1-479-584-21 CONTROL SW BLOCK (SW120TB) (for BLACK color)

Available in Part Store.
Thanks.

Sounds to me like the internal contacts aren't working correctly. Let your local camera store take a look. Hope it's under warranty. 

Looks like you need to take this to a camera store and have them check it over. I don't know of any setting that would cause what you describe.

See pages 36&37 of the manual.

If you haven't got one, you can download it here.

In M mode...

Turn the selector dial to adjust shutter speed.

Hold down the AV+/- button (top-right of rear screen) and turn selector dial to adjust aperture setting.

As for Av mode, this is perfectly normal that you cannot set the shutter speed. Av mode means that you decide on the aperture setting and the camera (not you!) decides on the correct shutter speed.

Hope this helps,

Matt.

The symptoms you're describing could be caused by either the "Fireworks" special scene selection mode, or manual mode with too much exposure compensation. Look at your mode selector (back of the camera, upper left hand corner). Is the mode set to the still image setting (pointing at the liittle red camera)? Or is it set to special scene selection (SCN)?

If you are unintentionally in SCN mode, to get it out of "Fireworks", just turn the mode selector dial to select "still image" (pointing at the little red camera). Or you can also select an SCN mode more appropriate for outdoors. Just turn the dial to SCN, press the FUNC button, then press the left/right arrow buttons to select Portrait, Beach, Snow etc...

But if your mode selector is already in still image selection, then check to make sure that you're not in "Manual" picture mode. Turn the mode selector dial to "still picture mode" (pointing at the little red camera), then press the "FUNC" button. Now look at the bottom of the screen. If it says "Manual", press the "left" button controller once to select and put the camera in "Auto" still picture mode.

Ok! I've searched and searched, so hopefully this will help you all out.

If the videos are very slow moving, you're in multi burst mode. Simple fix, actually...

Press menu button that's below the dial selector. There should be two small options near the bottom of the screen "mode" and the little suitcase.

Go into mode and make sure that Normal is selected. Multi Burst is actually a 16 frame per second function good for sports. It shows as a slow motion video on the camera and a sort of collage on your computer.

Hope this helps. :)