Error in vector("double", length) : vector size specified is too large....VLDs

I have what R seems to consider a very large dataset, a 12MB text file of
lat,long,and height values, 130,000 rows to be exact. 

Here's what I get:

data1 <- data.frame(read.table("BE3720078500WC20020828.txt",sep=",",

header=T))

raw.data <- as.geodata(data1)
variog.1.b <- variog(raw.data)

variog: computing omnidirectional variogram
Error in vector("double", length) : vector size specified is too large

round(memory.limit()/1048576.0, 2)

[1] 4000



The "Vector size specified is too large" seems to be a common error, but I
haven't seen any workarounds posted...and the help.archive web site seems to
be down. I can plot the dataset, do some elementary stats on it...no
variogram though. 


Any ideas on how to compute variograms on datasets with 100 to 300k points? 
Thanks 

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson at ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson