Absolutely - if you are trying to power the servos directly from the 5V output from the Arduino it will simply crash, don't power motors or servos from the logic 5V rail ever - you can damage the logic chips as motors can put out horrible voltage spikes (inductive load).
Normally you would power receiver and servos from a 6V or 7.2V battery pack - some receivers output a clean 5V (BEC), some don't, I believe. Try powering Arduino separately for now - it needs clean power.