I'm really interested in hearing everyone's input on this, too. I've tried Beano and Gas-X off and on for years... I eat a very high-fiber, vegetable-rich diet, and have for at least ten years, but my body has never seemed to adjust! My problem is that I just blow up like a balloon and cannot get the offending gas to, uh, leave. I don't pass gas in any form, pretty much. I just get to a point at about 1-2PM where my stomach is so distended and uncomfortable from it that I PRAY for relief. I even saw my doctor about it, but she seemed pretty baffled on how to relieve the situation.
Weirdly, I cannot drink coffee because it does the same sort of thing to me... blow up, massive discomfort. I never hear about THAT little side effect in the yes caffeine/no caffeine debates!!
The one thing I've tried that worked to relieve this problem was drinking about a tablespoon of baking soda dissolved in lukewarm water. It tastes revolting (think gritty sea water), but it worked like a charm. Within an hour, I was totally "deflated". But, truthfully, it's not something I want to do on a daily basis, because it really is gross. However, I know it's there if I get to a point where I can't take the pain anymore.