[R] load windows file in linux

[Beth Wilmot]

Hello R users,
I have windows XP running Rv2.6.0 and a Solaris OS 10 x86-64 running
Rv2.4.0.

I transferred several  large .rda files from windows to linux because
of memory issues.  I saved as .rda files on windows.  In linux, the
files load and have the proper dimensions, but will not index.  I get
the following error:

"negative length vectors are not allowed".

However, I can load and access the .rda files in a new R instance on a
different windows machine so I know they have saved properly.  

What should I be doing differently?

Thanks for your help,
Beth