Dr. Gridlock will be online and answering questions Monday at noon. Head here to submit questions in advance and head back at noon for the chat. (If you can’t make it, a transcript will be available here after the chat has concluded.)
Word of warning: Due to the number of questions received, he might not get to your question during the chat. But the good doctor will tackle additional questions from the chat on this very blog, so check back later to see if he answered your question.