Sometimes I hear that people who prefer non-localized Windows do so because they perceive that it's buggier than the US version. This is probalby true to some extent. We don't use a different code base for localized languages, so any code bug applies to all languages; some code bugs only appear on localized builds or when you use non-US locale; localizers have their own ways of introducing bugs...
Truth is though that very few of the "extra bugs" in a localized build would really impact the end user. Almost all of what we consider localization bugs do not impact functionality in a noticable way.
Over my next series of posts I'll talk about the types of bug that are introduced or discovered while localizing the product, and what can be done to prevent & detect them.
Not today though.