rvm install problems on Ubuntu 10.04

[Sam Weber]

Trying to get Ruby v1.9.2 running on Ubuntu v10.04. Other users
suggested trying rvm. When I follow these instructions for the install
http://www.christopherirish.com/2010/08/25/how-to-install-rvm-on-ubuntu-10-04/
and then run "rvm install 1.9.2-head", I see no output from the command.
Instead, bash shells are created (many per second) until the machine
runs out of resources and stops updating the screen. Here is a sample
of the "ps aux" output:

sweber 6483 0.0 0.5 5344 2548 pts/0 S+ 17:55 0:00 bash
/home/sweber/.rvm/scripts/manage install 1.9.2-head
sweber 6526 0.0 0.3 5344 1848 pts/0 S+ 17:55 0:00 bash
/home/sweber/.rvm/scripts/manage install 1.9.2-head
sweber 6534 0.0 0.5 5344 2548 pts/0 S+ 17:55 0:00 bash
/home/sweber/.rvm/scripts/manage install 1.8.7
sweber 6577 0.0 0.3 5344 1848 pts/0 S+ 17:55 0:00 bash
/home/sweber/.rvm/scripts/manage install 1.8.7

Any suggestions would be greatly appreciated.