That sounds strange. I would wipe and try the internet after that. It doesn't sound like an internet problem because that wouldn't close the browser. if it was an internet problem update profile or data restore would fix it. Before wiping make sure you know your gmail login and are synced. any paid apps will show up under market downloads ready to be redownloaded and your contacts and calendar will come back. if there are any other apps you need to "backup" download astro file manager. click tools, application manager/backup, select the apps you want to backup and click backup. after the wipe redownload astro, same process...menu tools ap manager/backup click the tab at the top that says backed up apps, select apps and click install. if that doesn't work you may want to see about an exchange.
