Could be a graphics issue causing some of the artifacts. Try updating your drivers for the graphics card.
Have you had Graphics issues in the past ?
I don't know man, not sure there is any simple solution here. or a "Ya I know what that is".

chuckebaby
Could be a graphics issue causing some of the artifacts. Try updating your drivers for the graphics card.
Have you had Graphics issues in the past ?
I don't know man, not sure there is any simple solution here. or a "Ya I know what that is".

but is a little too much to be a graphic problem... the interface of that plugins is not even in 3d lol, i'm confused

Reigner

chuckebaby
Could be a graphics issue causing some of the artifacts. Try updating your drivers for the graphics card.
Have you had Graphics issues in the past ?
I don't know man, not sure there is any simple solution here. or a "Ya I know what that is".

but is a little too much to be a graphic problem...

Absolutely not. I've seen Graphics cards cause a lot of sound trouble.
I would look for updates for the video card and open GL as well.
 

just updated the graphic drivers to the lastest and is the same.......... i'm really annoyed by this, nexus is my favorite vsti and i can't use it!!!

i just tried fl studio and............... it works fine!!!! the problem is the sonar!!! but how to fix this? i like using sonar only

Have you tried running latencymon?  Sonar is very particular in what it demands of an audio interface and your system has to be configured to allow that type of load. I would start with latencymon first, then make sure core parking/turbo boost whatever your motherboard calls it is disabled. It sounds like a system problem to me. 
 
Finally, if there isn't a 64bit version of Nexus, it might be time to find a new favorite synth.
 
Regards,
Dan

dcumpian
Have you tried running latencymon?  Sonar is very particular in what it demands of an audio interface and your system has to be configured to allow that type of load. I would start with latencymon first, then make sure core parking/turbo boost whatever your motherboard calls it is disabled. It sounds like a system problem to me. 
 
Finally, if there isn't a 64bit version of Nexus, it might be time to find a new favorite synth.
 
Regards,
Dan

yes i have latencymon but i don't understand how to read all the information that the program gives...
 
i have my cores unparked and power saving options in the bios disabled, you mean that i need to do the opposite?
 
i don't want to stop using nexus, i love it, the sounds are sweet and so rich, i didn't found yet another vsti sounding so nice 

Reigner

dcumpian
Have you tried running latencymon?  Sonar is very particular in what it demands of an audio interface and your system has to be configured to allow that type of load. I would start with latencymon first, then make sure core parking/turbo boost whatever your motherboard calls it is disabled. It sounds like a system problem to me. 
 
Finally, if there isn't a 64bit version of Nexus, it might be time to find a new favorite synth.
 
Regards,
Dan

yes i have latencymon but i don't understand how to read all the information that the program gives...
 
i have my cores unparked and power saving options in the bios disabled, you mean that i need to do the opposite?
 
i don't want to stop using nexus, i love it, the sounds are sweet and so rich, i didn't found yet another vsti sounding so nice 

What were your latencymon results?
 
Disabling those options in the BIOS is the right thing to do, so it sounds like you are good there.
 
If there are no 64bit updates, and latencymon says everything's cool, another option would be to try running these older VSTi8's through Jbridge (third party) rather than Bitbridge (comes with Sonar).
 
One other thing to consider is whether you are running your audio interface at a sample rate that the VSTi doesn't support.
 
Regards,
Dan

Nexus 2.2 is an incredibly old version of Nexus (latest is 2.7.4).  v2.2 is notoriously cracked:  You see a lot of "problems" reported by v2.2 users who never report back when you tell them to update it. (They can't update it for obvious reasons). 
 
So update to version 2.7.4 and report back...

JonD
Nexus 2.2 is an incredibly old version of Nexus (latest is 2.7.4).  v2.2 is notably cracked:  You see a lot of "problems" reported by v2.2 users who never report back when you tell them to update it. (They can't update it for obvious reasons). 
 
So update to version 2.7.4 and report back...

I have to agree with you Jon.
As I mentioned in previous comment:
 

chuckebaby
I would send a support ticket to Nexus
https://refx.com/support/

 
Did you get to send a message to them ?
 
Update here:
Download the latest update to Nexus2 from your account page. Click on either 'OSX' or 'Windows' to download the correct version for your system.
Double-click the installer to run it. Follow the on-screen prompts to install the update.
PLEASE NOTE: If you are using Windows, install the update to the same path as the previous version, so that the older file is overwritten.