[LAU] M-Audio Delta 1010lt SPDIF Clock Source

Hi everyone, I have a iLoked VST plugin, that I want to insert in my audio chain. In my Linux machine I am using a M-Audio Delta 1010lt in my Windows7 machine it is a M-Audio Audiophile 2496. I use the SPDIF interface with ALSA and ASIO at 64 frames, 2 periods @ 48k. The Win machine synchronizes to the SPDIF and I get audio from Linux into Win. The Win machine outputs the audio signal according to the Delta software. But Mudita24 is not getting input signal. If I change the clock source of the Linux machine to SPDIF IN and the windows machine to internal, I have an SPDIF IN , but no SPDIF OUT signal in the Linux machine. Apparently the problem is that the M-Audio Delta 1010lt cannot sync the SPDIF IN and OUT to the same internal clock. Does anyone know, if and how I could change that? Regards, Ck