R-Size Limit (Confused)

Hello,

I've been banging my head against my monitor for some time now  
trying to
import data into R. The problem is either in my use of syntax, my data
format, or my memory. I have described what I have tried below. Please
help.

=========My GOAL==============================

import a 4 column, 8,000 row table into R including headers.

=========WHAT I'VE ATTEMPTED==================

Original data was in Excel format.

Converted data to both a .txt and .csv (to see which worked better)

Imported data into R via commands as object "demand" (see below)

Please excuse the long file path.

demand=read.delim("C:\\Documents and Settings\\E066582\\My
Documents\\R\\R-2.13.0\\bin\\demand.txt", header=T)



demand=read.csv(("C:\\Documents and Settings\\E066582\\My
Documents\\R\\R-2.13.0\\bin\\demand.csv")

==========PROBLEMS==============================

In both cases, about half to three fourths of my data shows up as

object "demand" with about 4000 lines. My headers also fail to appear.
When my data is imported into R and I type the object name to bring it
up I receive a memory usage error.

==========SOLUTIONS============================

I've gone in and cleaned up my data, making sure there are no (') or  
(#)
but it could still a formatting issue

My computer has 1.9GB RAM.  I have looked but I can't figure out how  
to
increase R memory usage.

Any ideas would be appreciated. If someone needs more information to
help me I'll supply it.