Problem running radiant on www.hostingrails.com

just to let others now that I successfully installed radiant on
hostingrails as described in a previous thread :
http://lists.radiantcms.org/pipermail/radiant/2006-August/001492.html

However it appeared that a standard install with a small db and
admin/single user access used up way too much memory today and
crashed the server. → cleared account…

Any idea where it might come from ? Similar problems on other hosts ?

Tom =;]