This is on Snow Leopard.
When I plug in my iPhone or iPad into iTunes and click the "Check for update" button, it puts up a dialog box asking me to choose a file. This is supposed to happen if you press option while clicking Check for Update [which I'd done once], but now it happens every time. Restarting iTunes makes no difference, and it happens both on iTunes 10.4 and 10.5.
How can I get iTunes to check with Apple for an update? Thanks.