This is likely a generic problem with anything that uses a Button but I have found this issue with Tabs in a TabNavigator specifically. When you have a TabNavigator with multiple complicated children that take a while to load, clicking one tab then clicking another quickly can lead to a “shadow” icon at the top-left of the tabs. See the bug for more: SDK-15656
The following is a combination of several posts on Dean Edwards’ blog as well as an onload handler for those browsers that don’t support this kind of solution that I found elsewhere. This may not work in Opera, I am not sure. According to the second post Opera supports DOMContentLoaded but I don’t know if this code will catch Opera properly.
UPDATE: fixed the code above. WordPress was screwing up the last bit due to its insistence on changing the preformatted HTML in the code.
This is another quick informational post about a program that I find very useful. Musorg. When I was on Windows I used Mp3/Tag Studio to edit the ID3 tags in my MP3s. While this program is very useful and free (ad supported) it’s a pain to have to fire it up in Parallels to edit my tags now. Musorg is a free and simple OSX program that just lets you edit your ID3 tags.