It scrolls left.\n\nIt scrolls right.\n\nIt scrolls up.\n\nBut ... it doesn't scroll down ... !?\n\nYesterday, the "scroll-nub" stopped working. Or, I should say, Tiger\nstopped responding to it.\n\nI kept playing with the keyboard and mouse control panel, disabling and\nreenabling vertical and horizontal scrolling, and now it does work, for\nup left and right. No-go for down. This is true for every\napplication, finder included.\n\nI reinstalled the mighty-mouse drivers. No go.\n\nAny suggestions? I don't have a spare USB mouse to test to make sure\nthat other mice with scrollwheels would have the same problem, but I am\n99.9999% sure that the problem isn't with the mouse itself.\n\nPlease help!