R - Error Question for chart.Correlation(PerformanceAnalytics)

Guy,

Thanks for your constructive comments on chart.Correlation and the data 
sets included with PerformanceAnalytics.

<... snip chart.Correlation bits ...>
I'll defer to Peter to comment on (fixing) the coding in 
chart.Correlation, as I am admittedly a novice on graphics in R (I focus 
on the analytical functions in PerformanceAnalytics).

I wanted to address this point from Guy:

Also, it appears that a couple of the datasets (managers and edhec) have
what should really be the rownames as the first column of data in the
dataframe.  I did the following to get some of the examples to work:

I'm a little confused by this, as

rownames(edhec)
or
rownames(managers)

returns the rownames correctly:
 > data(edhec)
 > rownames(edhec)
[1] "1997-01-31" "1997-02-28" "1997-03-31" "1997-04-30" "1997-05-31"
[6] "1997-06-30" "1997-07-31" "1997-08-31" "1997-09-30" "1997-10-31"
<...>

So, can you give an example of something that fails for you, which R 
version you're using, etc.?

Thanks,

    - Brian