Hi Geert and Georg,
Build 1092 for Windows has been built with MS Visual Studio 2013, while 1087 was built with VS 2012. Other than this and new versions of third-party libraries (such as Qt, dcraw, OpenSSL, cURL, etc), there are no differences.
Visual Studio 2013 requires Windows 7 Service Pack 1. If you don't have SP1 installed, could this be the cause of these problems?