Hi Mahesh,
the discussion in the WordPress Forums is about 6 month old. Seems that they did not fix this issue.
Please try the following on your Server:
– used a custom image as a new Header image
– check if this Image is displayed on your site
– replace this image with the default Image and delete your custom Image
– what do you see on your site?
Another interessting issue is, that I can see a Header Image only with the Option “Complete site”, all other Options are leading to a black Header!
I’m currently not really satisfied with this theme. I’m going to try another one this morning.
Regards
Bernhard