Is Vectored Interrupt Controller-VIC , affect the Inter-niche functionality?

Hi Guys,I am also facing problems when using the vectored interrupt controller in combination with the TSE MAC and Nichestack. I am not completely sure if the real reason is caused by the combination of Nichestack and TSE MAC in conjunction with the VIC but whenever I comment out my call to NETInit() then it seems that my system keeps alive (I have a heartbeat LED flashing every second and controlled by timertask and MessageQue). I want to notice that my system works ok when using the internal IIC but I need very fast interrupt response behaviour and also need to preempt some interrupts. Unfortunately there are also no real examples on usage of the VIC with all its possibilities (AN595_VIC_collateral did not help me) such as preemption etc. Any responses from very experienced VIC users are welcome! Regards