Cubase artist 6.5 shut down and runtime error

PC: Windows 7 - 64 bit.
Intel Core i7 3770K 3.50 ghz.
16 GB Ram.
Instrument:Yamaha MOX-6
Cubase Artist 6 and update to Artist 6.5 + Steinberg Dark Planet, Triebwerk, Hypnotic Dance and Padshop Pro.

I have the latest software and hardware updates for Cubase Artist 6.5, PC and Yamaha MOX-6, so everything is up to date.
I have the following two problems in Cubase Artist 6.5
If I’m working with cubase Artist 6.5 I get regularly the message that a problem has occurred in Cubase Artist 6.5 and the program no longer works properly.
I also get regularly the message Microsoft visual c++ library runtime error.
I work with a completely clean system so only Cubase 6.5 and Cubase with its own vst synth’s and its own insert and send effects.
my PC is complete without external VST synth or other plugins from the internet.
I can read on the internet that I am not alone with these two problems.
How can it be that so many people have the same two problems on the internet, is there a new update coming that solves these problems ?

Sorry for my bad English.

Thanks for the help, and greetings from Belgium.