I just uploaded some fits files and they are displayiing all white. The fits header seems to be OK. I can open and view these fits files in AIP4WIN and MaxIm DL. The fits files pass fitsverify (http://fits.gsfc.nasa.gov/ ).
I tried using Tools > Image Display in Vphot, but hat does not have any effect.
An example fits file is attached.
|V380-Oph.fits ||18.01 MB|