I've signed up to go to a workshop Wednesday by viewing it on my desktop PC; great idea.  However, my Screen Reader will not voice the powerpoint slides and cannot deal with the Java Aplets that are used for sending questions to the speaker.  The company offering the workshop sent a nice e-mail saying "hope this doesn't inconvenience you."  Getting only one third of the benefit of the workshop does inconvenience me.  How can I communicate this to them in such a way that they'll hear it and do something about their technology being more accessible in the future?  Apologies don't help, I want change.  Thanks for any input.
Kathie