Unity 5.5 problem with lighting and bad shadows on 3d objects

Hi everyone
I have installed two version of unity in machine
Unity 5.5.2f1
Unity 5.4.3f1

I wonder why my objects even default objects are look bad in light and shadow, I work in lighting panel, shaders and … nothing work in 5.5.2f1 but all correct in 5.4.3f1.
I have Quadro fx 3800 with last update on windows 10 64 bit.
please halp if you have an answer for it. and please look at screen shot of my issue.
Thanks
Mg

compare of same scene and project in both version in image above


When I change the platform from pc to android it is ok and correct

andoid above


lighting setting

lighting setting

more screenshots here


my setting for VGA are like images below

This is a reflection probes problem. You will have to use another version of Unity I think.

Thanks,
So you mean this version of unity is buggy or this version is incompatible with my machine’s hardware?

I’ve just installed this version on another computer with Intel HD Graphic 4600 VGA and everything is all right, and we don’t need add any Reflection Prob to the scene.
But as you suggested in my 5.5.2 unity version with my Quadro fx 3800, I added a Reflection Prob to my scene and scale it to involve all my game objects, I played with options of reflection prob and these are the result:

2992629--222862--Capture12.JPG
Reflection Prob Type : Baked
2992629--222863--Capture11.JPG
Reflection Prob Type : Custom
2992629--222865--Capture10.JPG
Reflection Prob Type : Realtime
In this setting, everythings looks right, but still some thumbnails looks wrong if you see them at bottom left.

I don’t know should I replace my VGA or use older version of unity :confused:

2992629--222865--Capture10.JPG