Library for receiving the RC radio PPM signal

Hi

I have happily used my library in testing phase. After that I built a sketch wich using an another interrupt driven library too, and found a little time "glitching" in the PPM-PWM conversion.
I think this is when the another interrupt blocking the input interrupt. Is there a solution for setting priority between interrupts? Wich interrupt is prior, the input or the timer one?

Thanks:
Zoltan