Cubase 64-bit runs fine on my machine, no problems there.
Due to alot of 32-bit plugins (and not using jbridge), I just installed Cubase 6 32-bit on my Windows 64-bit system.
After clicking on Cubase6.exe (32-bit) the splash screen turns up and it starts initialising. Hoewever, it suddenly disappears - it doesn’t start and the blank Windows desktop appears.
After reading some other forums, I uninstalled Microsoft’s Visual C++ 2008 redistributable library and reinstalled it, still no luck.