Themes not showing in Network Admin

Hi,
I was trying to add themes from the Network Admin.
After I have selected some of the online themes, which were Installed successfully, I went to the Network Admin/Theme tab to do Activation but there were not showing up correctly.
The number counts of Themes did increase after I have installed them, but they are not thumbnails view of the actual themes showing.
I tried to do a Bulk Action select and Network Activate but nothing happens.
Attached is the screen shot:
[image pos="0"]

I can go to my multisite to select an Activate Theme, it works ok.
But my question is, how as a main site manager is to know which are the Themes currently Installed or Activated without seeing the Theme sample image?

Regards,
Chee