About NGUI adaptive resolution?

[yuhonglei]

Hi Guys

I have a question,My project resolution is 1024 * 768 and add a NGUI button in the lower right corner, as shown below:

No problem,But when I put the resolution is set to 640*480, the button is missing,Who knows why this is? What should I do?

[SteveJ]

Are you using an Anchor to hold it in place in that corner?

[yuhonglei]

this is my setting…