Setting up 1GB swap space is not going to help when you have 128MB of RAM, and if the kernel somehow could use that much swap, it would be very slow paging in-and-out.
As Dangrel said, you need RAM.
and for 128MB RAM, I advise 256MB of swap space, or less (prefer less).
Read this:
http://howtos.linux.com/guides/sag/s...location.shtml
... for more info.