Wrong icon is displayed in Project tree

Hello

Windows7 x64
IntelliJ Idea 10

1. Install IntelliJ Idea 10
2. Remove registry key

Windows Registry Editor Version 5.00

[-HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Desktop\NameSpace\{F02C1A0D-BE21-4350-88B0-7367FC96EF3C}]

(Remove "Network" icon from explorer navigation pane)

3. Create a project and files
4. Correct icon is not displayed

Please see a screenshot and log.
IntelliJ Idea 9 is not encount this issue.

If resolove this issue by IDEA setting, please teach me.
If this is a bug, please fix it.

Thanks,