zneb:
none of the Arduino boards work.
Are you saying you have multiple Arduino boards that all started having the same problem at the same time?
zneb:
Am I wrong in thinking this is Arduino problem and they should be looking into it.
It's impossible to say whose problem this is. Many thousands of people are using Arduino's software every day with absolutely no problems uploading. Of the tiny percentage who do have uploading errors, the vast majority are caused by user error or damaged/defective hardware. Anyway, it's not really productive to talk about whoese problem it is.
If you have any external circuitry connected to your Arduino board, try disconnecting it to see if that solves the problem.