I understand that GIB has problems, and I have to say I am seeing improvements slowly but surely, but I can't believe this one still exists.
First off, after the Double, I think 1♥ should stay 4+ ♥, but change to 5+ HCP, 7+ total points. Then, my pass of 1♠ should limit me to 5-6 HCP, 7 points, 4-5 ♥, 2-3 ♠, 3- ♣. It looks like the Pass doesn't do anything constructive. Even in spite of that, unless a Double of 3♦ would be penalty, why does GIB bid 3♠ and not 3♥ or X?
EDIT - I have to thank 1eyedjack and BBradley62 in this GIB captaincy thread for finally figuring out how to post the hand directly into the post rather than always using the link. I set my dimensions to 500|300 and it looks great.
EDIT 2 - I changed it to 400|300 and it seems fine on this computer, with no white box. Unless I was seeing things, it looked a lot smaller on my home computer though.