Hi Bob,
maybe it would be a good idea if you could introduce yourself, who you are, what you are working on, and in which context you are doing this.
You post a number of questions here, and expect people to help you. Unless we know if you are working on something useful, and will actually contribute that back to the community, why should somebody help you with those issues?
Also, your mails are often _very_ short and don't give a lot of context.
I don't want to scare you away, but just give you an explanation why your mails get so little feedback on this list. It's actually up to you to do something to change that.
Regards, Harald