R-devel and bad magic number

Is anyone else having issues like this (r-devel)?  The files look fine in an
editor....

load('stuff1.R')

Error: bad restore file magic number (file may be corrupted) -- no data
loaded

load('/Users/sdavis/Desktop/Downloads/biomaRt/R/biomaRt.R')

Error: bad restore file magic number (file may be corrupted) -- no data
loaded

version

_         
platform powerpc-apple-darwin7.9.0
arch     powerpc   
os       darwin7.9.0
system   powerpc, darwin7.9.0
status   Under development (unstable)
major    2         
minor    2.0       
year     2005      
month    08        
day      11        
svn rev  35256     
language R     

Thanks,
Sean