My experience with Silverlight 3 on Chrome has been mostly positive, even though Silverlight 3 does not officially support Chrome. However on rare occasions, Chrome shows a blank space where a Silverlight application should appear. No error is reported. A right click leads to the Silverlight configuration dialog as expected.
I most recently encountered the problem after updating one of my Silverlight applications, http://www.nevlab.com/Quicksort.htm, on my web server.
Have people seen this behavior with the Silverlight 4 beta and Chrome?