[adamgosp]

I'm on the Optus BB plan with free email and internet browsing and have had browser set to Internet Browser option. All functioning well. Suddenly after a backup of address book etc, I lost the Internet Browser icon and it was replaced with Optus Zoo. I've checked Browser settings and there's only Optus Zoo.
Obviously if I continue to use this it will rack up costs. What has happened and how can I restore i.browser. I've done a soft reset and removed battery etc. Thanks.