On my '03 Accord EX, the green light next to the "D" (for "drive") gearshift indicator on the dashboard, next to the tach, is blinking. The manual just says it might indicate a transmission problem, and that I should avoid rapid acceleration and have it checked out. Does anyone know anything about this? Thanks.

I recommend taking your car to the dealership for diagnostics. They have all the necessary equipment and resources to accurately diagnose your car efficiently and typically correctly the first time. Driving your car too long with a problem can cause problems to become worse or nonrepairable.