[Rd] Windows/7706 (PR#7889)

[Andy Bunn]

> According to the link you cite
> (http://r-bugs.biostat.ku.dk/cgi-bin/R/Windows?id=7706), it seems it is
> related to an AMD Athlon processor. Mine is an Intel Pentium IV HT
> 3.0Ghz processor, which could explain, why I cannot reproduce this bug.

I have an Intel Pentium M processor at 1.60GHz so I guess this isn't
specific to the AMD. I just rebuilt from source using the current RTools
suite and get the same glitch. I have not tried the latest png version.

-Andy