I have installed the Qt Open Source edition (the Windows installer one) from the home page (C++, WinXP) and I've run configure from the VS Command prompt. Took about an hour and seemed to work okay but when I try and go into any tools (from the Start menu or the .exe's) it comes up with a dll error, saying it can't find an entry point. For example, when I run the designer it says:

The procedure entry point for _Z17qt_message_output9QtMsgTypePKc could not be located in the dynamic link library QtCore4.dll.

It comes up with the same message if I try to run the Examples and Demos launcher or the linguist or the Assistant - ie. any of the tools that are on the start menu.

Is there anyone who can help? Have I not completed the install or what?