Thanks again for your feedback.
As discussed by email, I have been asking our current social networks partners about compatibility issues they might have encounter and all those who answered told me that everything was working fine.
By checking on http://buddypress.feeligodemo.com/ you can see that the GiftBar is optimized for all browsers. Could you check and confirm that this is the case for you?
It might only come from a specific new theme you are using.
Let me know if it's the case and we will fix anything that could have made this.
Also regarding tablet compatibility, we have just released a new version, the GiftBox, that might work perfectly for you: http://www.feeligo.com/giftbox
Thanks and have a good day,