Bug in R.app 1.53

I'm observing the same phenomenon. I'm using R.app GUI 1.53 (6335) x86_64-apple-darwin9.8.0 on 10.7.5. As far as I remember, it started when I last updated R. 

Sometimes it's particularly aggravating because it will generate more lines of text than my window can display, preventing me from seeing the output of the command. 

TIA

sessionInfo() 
R version 2.15.2 (2012-10-26)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] graphics  grDevices datasets  utils     stats     methods   base     

other attached packages:
[1] RCurl_1.95-3    bitops_1.0-4.2  XML_3.95-0.1    reshape_0.8.4   plyr_1.7.1      scales_0.2.2    ggplot2_0.9.2.1

loaded via a namespace (and not attached):
 [1] colorspace_1.2-0   dichromat_1.2-4    digest_0.6.0       grid_2.15.2        gtable_0.1.1       labeling_0.1      
 [7] MASS_7.3-22        memoise_0.1        munsell_0.4        proto_0.3-9.2      RColorBrewer_1.0-5 reshape2_1.2.1    
[13] stringr_0.6.1      tools_2.15.2      


On Saturday, December 15, 2012 12:12:10 AM UTC-5, Earl Brown wrote:
When I run code in R.app, in addition to getting the results I expect, the console also randomly prints out previously submitted code and places it before the prompt arrow and/or before the output of what my code asks R to do. The color of this random, unwanted output is gray. This doesn't happen when I run my code in R in a Terminal window, nor did it happen before I upgraded to R 2.15.2 and R.app 1.53 a few days ago. Take a look at the two attached screen shots, one of R.app and the other of Terminal running the same code. And here's my sessionInfo(): 

sessionInfo() 

R version 2.15.2 (2012-10-26) 
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) 

locale: 
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8 

attached base packages: 
[1] stats     graphics  grDevices utils     datasets  methods   base 

Any ideas? Thanks, Earl Brown 

----- 
Earl K. Brown, PhD 
Assistant Professor of Spanish Linguistics 
Advisor, TEFL MA Program 
Department of Modern Languages 
Kansas State University