I don't know if it's even worth bothering you about it with Ranorex 3 coming out in a matter of weeks, but...
We have recently noticed problem opening Ranorex Reports using Chrome, they work fine with IE and Firefox.
I don't remember if we ever could open them with Chrome.
It's a problem for us because we post the results on a webpage with a link to logfiles, so we don't have control over choice of browsers.
Chrome version: 9.0.597.98