Qt Creator 2.4.0 and QT SDK 1.1.4

[tom701]

Hi Guys,
I have question about QT Creator 2.4.0. I use windows 7 32bits and visual studio 2010.

Previously, I had QT SDK1.1.4 installed. I unistalled QT SDK 1.1.4 completely (I hope). Then I installed QT 4.8.0, followed by QT Creator 2.4.0.

Now, the strange thing is: when I check the QT Version in QT Creator 2.4.0 (tool -> option -> Build & Run), somehow, it Auto-Detected a QT version (path) installed previously by QT SDK 1.1.4, which is supposed to be removed completely. Somehow the old path (which is removed and dosen't exist) is remembered and retrived by QT creator. Obviously, the path dosen't exist anymore, so QT Crearor can't find the version. I have to manually Add QT 4.8.0. Please see the attached picture.


I have check the system Environment PATH, and make sure only path to newly installed QT 4.8.0 is added there (which is 'C:/Development/QT/4.8.0/bin').
I also tried to search the system registry, to see if any old paths are saved there, and removed any thing to do with "4.7.4".
Still QT Creator 2.4.0 is so stubborn that it keeps using an old (non-exist) path as QT version, while keep ignoring the latest installed QT 4.8.0 (the path to QT 4.8.0 is added to system environment path).

So the question is:
When un-installed QT SDK 1.1.4, are there anything (configuration, setting, etc.) still kept in the system? and where are they?

Many thanks!