Well I’ve spent a very productive afternoon fixing CSS bugs in jQuery UI http://jqueryui.com, to make a very specific set of conditions work under Internet Explorer.
If you’re interested, basicaly putting an overflow inside the dialog overlow causes the first overflow to render incorrectly if the positions are relative.
The great thing, though about the open source community is I can now help my fellow programmers by submitting my findings (and fixes) back to the UI dev team.
This is where I have mixed feelings about open source, as in GPL style open source. If I write software as a sole developer what can I realistically offer than a small amount of support in addition to effectively giving my code away for free to anyone who buys a licence. Then for them to be able to resell it and I don’t make money anymore.
The GPL is great for big projects or simply hobbies but it isn’t all that great for sole developers. I much prefercthr method of giving source with the application but don’t give distribution rights away.

