I'm giving up. After searching for 2 hours without any success I decided to ask you.
Actually I have no idea what to use as a search string...
Here is my problem:
I just did a fresh install of Lion and now if I open finder I have these 3 little rectangles behind two of my partitions.
They are NTFS partitions on one hdd. Strangely the NTFS partitions on my other hdd don't show them.
I also posted a screenshot for better understanding.