[R] Rpart plot produces no text

I am using R Studio and am able to fit a tree with RPlot, however, the tree in the viewer has no text (see image attached). Jim Thompson This e-mail message is for the sole use of the intended recipient and may contain information that is confidential, proprietary or privileged. Any unauthorize

[R] Rattle: Trouble opening .csv files

I am a novice R user and recently installed Rattle primarily for the decision tree functionality. I immediately run into problems trying to open a .csv file from the "Data" tab. The error message I get in my "R" log window is: Error in if (crv$load.tooltips) loadTooltips() : argume