WindowServer Crash in El Capitan

[HennoeR]

For a week I'm getting several WindowServer crashes a day, which results in a forced logout. I use the Nvidia Web drivers for my GTX 770.

I've attached a few windowserver crash reports

Also I was told previously that I should try to disable SIP using the terminal on the recovery HD, which I did. However I was unable to change anything with the "csrutil disable" command:
before: after:

 

[HennoeR]

just had the third one today

 

[HennoeR]

and another one just a few seconds ago

 

[HennoeR]

maybe if I keep on posting more crash report files someone will notice and help me. View attachment WindowServer_2015-12-23-142249_Hannos-Mac-Pro.crash.zip

 

[HennoeR]

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[HennoeR]

I don't know what to do anymore. My system keeps on crashing and/or logging me out. I guess it's time to switch to Windows even though it lacks so many features of OS X but at least it runs stable. Or I try to post in another forum on a different site.

 

[HennoeR]

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[HennoeR]

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[HennoeR]

and another one: View attachment WindowServer_2016-01-03-183721_Hannos-Mac-Pro.crash.zip

 

[HennoeR]

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