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Mail/preferences/Rules

Since 10.4.0 Mail has had this problem.

Go to Mail/Preferences/Rules enter 25 or more rules and the rules entry window will overflow off the bottom of the screen, taking with it the control buttons.

Apple phone techs, Apple Store geniuses, Apple Engineering have repeatedly confirmed this problem over the last 5 years. Apple Engineering has repeatedly said they are working on the problem. I am guessing its no more than 4 lines of code.
 
Since 10.4.0 Mail has had this problem.

Go to Mail/Preferences/Rules enter 25 or more rules and the rules entry window will overflow off the bottom of the screen, taking with it the control buttons.

Apple phone techs, Apple Store geniuses, Apple Engineering have repeatedly confirmed this problem over the last 5 years. Apple Engineering has repeatedly said they are working on the problem. I am guessing its no more than 4 lines of code.

I'm going out on a limb here but if has taken 5 years I'm guessing that the issue isn't with Mail.app but a bug in the control itself - I wonder whether such a bug is reproducible with other applications using the same control. It will be interesting to see what happens in 10.7 given that 10.6 was an evolutionary step - maybe 10.7 will be the time Apple is willing to break compatibility in some areas to fix long standing bugs as you've noted in your post.

Unrelated to your post: Although there is much 'demand' that Apple employ more programmers/engineers one also take into account the 'mythical man month' and how adding more programmers/engineers needn't actually result in a faster delivery of a product or more things being fixed. The fact that Apple is focusing on OpenGL, graphics and other things in recent updates tells me that the 'hell for leather' development of iOS has come to an end and it is settling down to a more 'leisurely pace' which will hopefully mean a more 'balanced' (in my books) between iOS and Mac OS X development.
 
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