KRON Web Cams not working or blocked out?

Curiously, the bright path web site (mirrored on indybay.org) cam of the anti-war rally (a local street level shot) is outperforming KRON4 web cams, three of six of which seem to be blocked out as o f 1:15 PM Sunday (Feb 16th).- Van Ness Ave, Embarcadero Skydeck, Bay Bridge Toll Plaza. I was enjoying decent views from the Bay Bridge Toll Plaza sky cam (which looked like it was focused on Market Street -see attachment), seeing lots of people marching, and then I e-mailed KRON to complain about the other two down cameras and now the Bay Bridge Toll Plaza camera is blocked out. Since these are also used as the sfgate cameras, it is difficult to get a good aerial view of the rally. Their other cameras are working quite fine:

http://www.kron4.com/Global/category.asp?C=20787

I've attached one picture from an early shot. At one point I was seeing a completely full street. It seems a little incongruous that they would both request rally pictures:

http://www.kron4.com/Global/story.asp?S=1131592&nav=5QYeE0Og

and not have working web cams. Perhaps the cameras can't handle the constant movement.