[R] qplot error

[Frank Lawrence]

When I invoke qplot, I get the following error:
Error in rename.default(x, .base_to_ggplot) : object '.data' not found

I would appreciate any advice.

sessionInfo:
R version 2.10.0 (2009-10-26) 
i386-pc-mingw32 

locale:
[1] LC_COLLATE=English_United States.1252 
[2] LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
 [1] grid      grDevices datasets  splines   graphics  stats    
 [7] tcltk     utils     methods   base     

other attached packages:
 [1] epicalc_2.10.0.0   ggplot2_0.8.3      reshape_0.8.3     
 [4] plyr_0.1.9         proto_0.3-8        MCMCpack_1.0-4    
 [7] coda_0.13-4        polycor_0.7-7      sfsmisc_1.0-8     
[10] mvtnorm_0.9-8      xtable_1.5-6       prettyR_1.5       
[13] lme4_0.999375-32   Matrix_0.999375-31 effects_2.0-10    
[16] colorspace_1.0-1   nnet_7.3-1         mvnormtest_0.1-7  
[19] gmodels_2.15.0     gtools_2.6.1       latticeExtra_0.6-4
[22] lattice_0.17-26    RColorBrewer_1.0-2 doBy_4.0.5        
[25] foreign_0.8-38     rms_2.1-0          e1071_1.5-20      
[28] class_7.3-1        car_1.2-16         mitools_2.0       
[31] MASS_7.3-3         svSocket_0.9-48    TinnR_1.0.3       
[34] R2HTML_1.59-1      Hmisc_3.7-0        survival_2.35-7   

loaded via a namespace (and not attached):
[1] cluster_1.12.1 gdata_2.6.1    svMisc_0.9-56  tools_2.10.0

Respectfully,

Frank Lawrence