Of all the apps included with the iPhone, MobileSafari is probably the one that will most often give you problems. Of course, MobileSafari shares many of the same problems that can beset any Web browser, but I focus here on MobileSafari-specific problems.
Start your troubleshooting by navigating to Settings > Safari. Located here are several options that can eradicate a wide array of symptoms (Figure 9-2).
Figure 9-2. Safari's settings, accessed from Settings > Safari.
The Settings screen has three useful buttons that you can use to solve problems: Clear History, Clear Cookies, and Clear Cache. Here's when ...