HBO Go received an update today that brought bug fixes and support for the Samsung Epic 4G Touch, but many users are finding that the app won't after updating it on their Samsung Galaxy S II, Sprint Epic 4G Touch (love that name!). That's an easy fix, thanks to Android Central member Murphy5111. You'll need to clear the application data, which is easy and quick to do:
On your homescreen, press the Menu button.
Go to Settings, Applications, Manage applications.
Scroll down the list until you find the HBO Go app, then press it's entry on the list.
Press the "Clear data" button.
You'll have to sign into your cable company account again, since you've manually wiped out the application data, but that's a small price to pay for streaming movies and HBO's programming. You can find the update in the Android Market, or hit the link after the break.