Thank you for the screenshot and XML file.
However, I am currently unable to replicate your problem.
I have used your XML settings in a test gallery and have opened the gallery in both a browser and svBuilder-Pro.
In both the browser and the svBuilder-Pro live preview window, the caption background is correctly positioned behind the caption at the very top of the main image.
I have also created a new gallery in svBuilder-Pro and have selected Caption Position 'OVERLAY_TOP' (and increased the Caption Back Opacity) and, again, the caption background is correctly positioned.
Does your caption background appear too low only in the svBuilder live preview window or also when viewing the gallery in a browser? If it also appears incorrectly in a browser, would you be able to publish the gallery and post the URL so that we can take a look?
Also, are you able to replicate the problem by repeating a number of steps when creating a new gallery in svBuilder-Pro? If so, can you run me through a way for me to replicate this problem on my on computer? Thank you.
SimpleViewer Support Team