Even my bugs are new

I am facing an issue now
Even the bugs I am facing are new too.
After I have installed VS2010, My Excel2007 started to crash several times in one hour, this started to be frustrating, I need to see if VS2010 is the issue and solve it.

This is the first time I have Office 2007, VS 2010 and Win7 64 bit together, that is why I think I need to go online and see what are the solutions to this one.
It is really wasting my time.