Real Delay with all Softsynths in Sonar Platinum (Jamaica Plains only)

Is no one else realizing, that there is no mixing buffer compensation on all Softsynths? I tried with different Audio Interfaces (UA25, Mbox2, Avid HDX) and different drivers like Asio and WDM. The higher the Buffer is (like 512 Samples) the more the first Note gets swallod. Everyone using Sonar Platinum Jamaica Plains could reproduce this issue. Put the now Time on a Midi Note going to a SoftSynth and if you hit play it`s not played or comes too late.
There is already a thread about a delay issue with Softsynths, but I don`t think it's been realized, what the real problem ist. If I want to listen to Part, I always have to put the now time bevor the 1 to here the 1... thats annoying.

I have this problem on both computers I use. Just open a new project, insert e.g. Dimension Pro, choose any preset e.g. a drum preset, put some kicks on the quarter beats, put the now/play marker on the first note and hit play: the first kick is missing or is played not from the beginning. The effect becomes more noticable the higher the playback buffer is. With 96 Samples its ok, with 512 Samples nearly the whole first note is missing. It is with every VST Softsynth I use (Omnisphere, Superior, Kontakt...)
I put a simple Dimension Pro cwp here (http://www.crises.de/temp/Delaytest.cwp), but it depends on the buffer size you adjust in preferences/driver settings. If it is low, the effect is small. The higher, the worse it gets. 
 
Edit: if you set your driver to WDM and increase the buffer size to 4096 it really becomes horrible ;)

Just to clarify this was with ASIO right? in WDM there was no issue.

It is not fixed in Kingston.

Same as in post #3. DimPro Dry Kit 01, AD2, doesn't matter. 1024, 2048 buffer. Short drum hits sound different if play starts from note beginning exactly, or if starts some time earlier.

Sorry, again my fault. It was Fade On Start option set to 3 ms, cause I had problems with pops.
But it is very strange that with this option it sounds very different with different buffer, with 128 samples it is not noticeable, but with 2048 it is very obvious. It seems that this problem is still here of Fade On Start is not 0. Because eaten time on start should depend on fade time only, and not on buffer size.