Someone new to DSLR's as opposed to a smaller sensor point and shoot style camera.
We have seen this scenario often.
Going to a high megapixel density beast like the K3 series is a steep learning curve as has been pointed out.
It begs the question: What do you want out of photography from your K3 or what did you think it would give you as opposed to your old camera?
Many people are better of using their old camera which they are used to and produces suitable images for them and their needs.
A beast like the K3 adds another whole dimension to photography and as has been described above is like first getting into a fast twitchy sports car which seems at first to you seemingly impossible to drive and to get from point A to B, your better off in your old sub compact Ford...... but once your familiar with the driving requirements of the sports car, you both add to your understanding and the width of your smile...
You can set it to auto everything and get a similar result but as I have found out going to high megapixel cameras, you need higher shutter speeds or sturdy support.
The K3 series 'on screen' processing and using higher iso's is NOT the greatest when it comes to digital noise. To the "pixel level Police" ..... this is precisely a situation where the K3 sucks !! You can talk about that till the cows come home but a guy wanting clean images on his laptop and no more, after coming from an over sharpened and then smoothed jpeg point and shoot will look at his old camera and wonder why he bothered.........
My Samsung mobile phone can produce instant jpegs that often look awesome on a laptop screen after using HDR mode and come up looking sharp, 3D and nice light metering. Of course we know the comparison with a DSLR is not true in the real world but someone handholding a K3 and 1/10th or 1/20th indoors at iso 3200 with not much processing option will often ask the question that he has.
I also often look at images so beautifully sharp and detailed on screen in a smaller format and curse that it's "soft" only to find that once I zoom in or pixel peep, that its perfect, just needs a bigger format to show that off.
The OP here, I feel needs a rather large and steep learning / understanding of going to DSLR photography with modern cameras and to understand that a degree is almost needed to fathom all the elements which make up the move to these beasts.
It is not a criticism, merely an observation of what we have seen often and were all once ourselves ...... confused and frustrated ??!!
Go to a God father of photography, a course or find someone to take you under their wing and explain what it is your seeing and doing. The EXIF data is often a dead giveaway.
Go well and enjoy.