fsx crash with the new sp1b update

Hi guys,

Seem to be getting the msvcr80.dll ctd error with the new sp1b update everytime i start fspassengers. I've tried reinstalling fsx, resetting my pc to factory settings and even manually updating the c++ visual files. It was by doing that, that i noticed that this problem only occurs if i start fspassenegers with the new sp1b update. If i roll my 777 installation back to the original release or indeed use any other plane, the msvcr80.dll error doesn't occur.

Does the new sp1b package update the c++ visuals in any way? Is there anything that can be done? Any help is greatly appreciated.