Delphi XE2 Update 4, Windows 7 64Bit
Installing GLSCENE_DesignTimeXE2.bpl results in error;
'Missing FMX161.bpl file'
In Update 4 FMX161.bpl isn't used any more and is called FMX162.bpl.
Things did work in Delphi XE2 Update 3.
Looks like some kind of naming problem.