PS: (By way of example to illustrate my previous post)
Microsoft has the default position of the Start Bar WRONG!!
This is proved by the fact that when you click the Start Button, your most frequently used links are furthest from your mouse.
The Start Bar belongs at the TOP!!!
I thought "data" was uncountable, and you have to use things like "pieces of data", "collection of data" and the like, JUST LIKE you would do for "information" (piece of information), and "people" (group of people). So the grammatically correct would be "You collection of data is weak" but noone says it this way.
PS: I hate it too when people just send links. If they can't explain it in their own words, what's the point of spending time discussing with them?