Luca, Thank you for the suggestion; I do have an Nvidia graphics card and I am using the Nvida driver; still searching for a solution, quite odd...
Tom On Thu, Mar 28, 2013 at 12:28 PM, Luca Nanetti <luca.nane...@gmail.com>wrote: > Thomas, > any chance that you could have problems with your graphic driver? For > instance, if you have an Nvidia graphic card, I would recommend switching > from the 'nouveau' driver to the official Nvidia one. > > Kind regards, > luca > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.