Problem after freezing track with Edirol Orchestral Vst

Hi people!

Im using the Edirol Orchestral VST in SONARX1...recorded some stuff, and everything is ok...playback is perfect.

But when i freeze the midi track, or when i export the audio to wav..gets a little latency just on this tracks with edirol...

My drums are made with Battery 3, and its ok when i export...just edirol is getting this latency / problem.

Someone can help me? Sorry for the bad english.

Cheers