That Sheldon page you linked has a list which you should work thru in order. You won't get anything more helpful than that on here.
There are no quick solutions.
Also just a thought but have you tried searching... I seem to remember someone once asking a similar question on here before... but it might just be my imagination.... still could be worth a shot... you never know, I often search this sight and find all sorts of helpful ans.
That Sheldon page you linked has a list which you should work thru in order. You won't get anything more helpful than that on here.
There are no quick solutions.
Also just a thought but have you tried searching... I seem to remember someone once asking a similar question on here before... but it might just be my imagination.... still could be worth a shot... you never know, I often search this sight and find all sorts of helpful ans.