sorry, i don't remember having to do anything. here are a couple of things to try, but i don't know if these has any direct impact:
1) go to market and install flash player, if not already
2) go to browser settings and check Enable JavaScript
3) browser settings, select either Always on (not recommended) or On demand under Enable plug-ins
4) browser settings, clear cache and clear cookie data
i'm assuming you are using the stock Internet app, but these options should be available in most other browser apps.