problem plot raster objects

Dear all,

there seems to be a problem ploting RasterLayer objects with plot(). 
After updating to new raster version plot did not take "zlim" argument 
and the "at" argument when passing "breaks" and "axis.args" together.

The error message:

##############################################################
brk=c(0,0.25,0.6,0.8,1)
plot(ndvi, col=vi.palette(4), breaks=brk, legend.shrink = 0.8, 
axis.args=list(at=c(0.15,0.45,0.7,0.9), 
labels=c("Sa.","Sen.","Gra.","Wal.")),
zlim=c(0,1), main="Aggregierung", legend.width=1.2)
##############################################################

Error in axis(side = 4, mgp = c(3, 1, 0), las = 2, at = c(0, 0.25, 0.6,  :
   formal Argument "at" matches to several given Arguments
Zus?tzlich: Warnmeldungen:
1: In plot.window(...) : "zlim" is no Grafikparameter
2: In plot.xy(xy, type, ...) : "zlim" is no Grafikparameter
3: In axis(side = side, at = at, labels = labels, ...) :
   "zlim" is no  Grafikparameter
4: In axis(side = side, at = at, labels = labels, ...) :
   "zlim" is no Grafikparameter
5: In box(...) : "zlim" is no Grafikparameter
6: In title(...) : "zlim" isno  Grafikparameter

Normally plot() with raster objects accepts arguments from image.plot() 
The code above works for older raster versions.

Very great thanks for any help.

Carsten