Have you got delay compensation switched on in the VE Pro Preferences?

What latency have you set for MIR in the VE Pro Preferences?

DG

Delay compensation is switched on. 

Latency was at 0 and is now at 128. 

I still here a slight delay. 

AFAIK there are two things responsible for latency compensation. VE Pro (assuming that you're using the server version) has to report the latency to Logic, and Logic has to act upon it. It is usually the last of these that seems to cause problems. Sometimes things can be fixed by hitting play, stopping and hitting play again. Other than that I can't help, because I have no problems with the latency compensation.

DG

So do you have no audible delay at all, when you play a note on your keyboard?

My latency is slightly better now, but I still hear a little delay. 

None at all. Just one more thing; in the VE Pro server interface have you set the buffer to "none"?

DG

Where can I set the buffer? Are you talking about the latency, where you can choose between 0, 128, 256, etc...?

This is set to 128. I tried to set it to 0, but Logic causes the problem, that you get no MIR-wet-signal, if set to 0.

No, I'm talking about the VE pro server interface. As you don't know what I'm talking about, I think that there is a very high probablity that it is set to something like 2 x buffers.

DG

How do I get to that setting? When I start the "Vienna Ensemble Pro Server" and click on "preferences", I can choose between settings for "server", "plugins" oder "Vienna MIR Pro", but I can´t find anything, where I can change the "buffers". 

Not the server, the server interface. The connector you load into your sequencer to connect to VEP.

DG

Now I found it. It´s set to 2 buffers. Should I change that?

If you want less latency, yes. However the lower the latency, the greater the chance of pops and clicks.

DG

Now I got it. Somehow the problem dissapeared by itself. Thanks anyway!