Hi again,
For problems like this it is good to know EVERYTHING about the real life circuit or at least as much as humanly possible.
The pic's are much better now, as i can see the waves much better and start to understand eventually what is going on here.
What is missing now is what values are being used for the real circuit, such as:
Inductor value in say uH,
output cap value in say uF,
input cap value,
lead length between circuit and input power source,
what kind of input power source and what voltage level,
an input voltage level measurement with and without the circuit connected, and with and without load,
the values that determine the switching frequency,
input current with and without load,
an actual ohm meter measurement of the inductor series resistance,
part number for the inductor,
maybe more measurements.
These are measurements and particulars which will help determine what is going on. In a boost circuit everything has to be known or else it's impossible to figure out what is wrong. This is even the case with a buck really though. If you have checked the basics then it is necessary to look closer and a closer look requires more measurements and more information about the real circuit. You can see even the lead length between circuit and input power is good to know, as well as what kind of wire is used to wire it up.
The more information about the circuit that is known the easier it is to find out the unknowns such as what is making that 1MHz wave.
If the layout is 1/2 inch square that sounds very good. So next try to list everything about the circuit you can and make those other measurements.
Also, what is the minimum frequency you can set the chip to run at, is there some minimum?
LATER:
I almost forgot to ask, why do we see the waveforms starting at the middle of the scope shot on the time axis? We need to see the steady state output not the initial startup, which can be very hectic for a boost converter.