User form runs one calculation before a second?

Hello once again,
This time I have a user form to run some calculations that needs a little help. I think the problem is that the first two lines need to run and produce a value before the third can function correctly. Without the third line, the calculations run as they should. So somehow there needs to be a stop in there before running that last command.

Ideas?

Thank you

HTML Code: 

What happens is that nothing happens

And after doing some quick debugging, even the first two aren't returning values, only the "deg" and """. Something else is going on here.

I shall return!

Okay, got the first two correct. I had changed the combo box named range without resetting its column count and bound column.

Now I'm getting a run-time error; Type Mismatch. Not good with solving those.

Norie thank you for the help. Turns out it was an issue with the formula, now I feel like a dumba....