Qwt app compile error

[ajb]

I'm having problems with compiling the Qwt test applications. I'm using Qt Creator 1.1.0 and Qt 2009.02, and I've downloaded the Qwt 5.2.0 libraries. I'm developing in WinXP SP3.

I've copied some of the Qwt example files into new directories and imported them into Qt Creator through the relevant "pro" file (e.g. the one in "\examples\simple_plot"). The application builds fine, but exits immediately and gives the following error when I run it:

C:/Work/Qt/plot_test/debug/plot_test.exe exited with code -1073741515

C:/Work/Qt/plot_test/debug/plot_test.exe exited with code -1073741515

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If however I open up the example files directly from the <QwtRoot>\examples\... directory, they compile fine in QtCreator.

I've noticed a few other people on this forum having similar problems (e.g. here and here) but there are no suggested solutions in those cases.

Any ideas what could be going wrong? This is a minimal case, but the real issue is that I get this error message when I compile my custom applications in QtCreator whenever they make use of the Qwt libraries. Any suggestions would be greatly appreciated.