SAPGUI: Graphical Form Painter could not be called (FORMPAINTER_CREATE_WINDOW, )

Hi,

After upgrading to SAPGUI 7.40 SP5 (Release: 740 Final Release, File version: 7400.2.5.1110, Build:1614083, Patch level: 5) I got the following error message in SE71 when I try to use the Graphical form painter:

Graphical Form Painter could not be called (FORMPAINTER_CREATE_WINDOW, )

Message no. TD245

Diagnosis

An error occurred structuring the graphical Form Painter.

System Response

The system switches to the alphanumeric Form Painter.

Before it worked fine with SAPGUI 7.30. No relevant OSS note was found. OS: Win 7 Enterprise SP1 64bit.

Any hint what to check (apart from opening an OSS message)?

Thanks,

Peter