backgroundColor property is not working on the latest jQuery version

I have a problem with my javascript code.
When I was using jQuery 1.6.3

backgroundColor: 'rgb(255,255,255)'

was working.
But if I load the new jQuery 1.7.1 this line of code does not change the background color to white as it is supposed to do.
Any workaround on this one guys?
Thank you.

It seems that it is a jQuery bug.Watch the whole conversation here :