change angle label in circular plot

[malbianco]

Hi,
thanks for the package.
I'm trying to make a circular plot, but I can't change the angle of the chromosome label. No matter which angle I use, the plot is always the same.

example:
CMplot(pig60K,type="p",plot.type="m",r=0.4,col=c("grey30","grey60"),chr.labels=paste("Chr",c(1:18,"X","Y"),sep=""),chr.labels.angle=45,
threshold=c(1e-6,1e-4),cir.chr.h=1.5,amplify=TRUE,threshold.lty=c(1,2),threshold.col=c("red",
"blue"),signal.line=1,signal.col=c("red","green"),chr.den.col=c("darkgreen","yellow","red"),
bin.size=1e6,outward=FALSE,file="jpg",file.name=NULL,dpi=300,file.output=FALSE,verbose=TRUE,width=10,height=10)

is it possible that the option is not available for the circular plot but is only for the rectangular plot?

thanks in advance
Gabriele