qcollectiongenerator keeps crashing

After installing the final release of Qt SDK 1.1 on Windows 7 64-bit, I tried to build my project (which builds perfectly fine with Qt 4.7.2), but keep getting a window message telling me that qcollectiongenerator has stopped working. The end result is that I cannot get the help for my application to build and, as a consequence, I cannot build my application.