[racket] SIGSEGV MAPERR si_code 1 fault on addr 0x4

I am on Ubuntu 10.04(Lucid Lynx) and I have tried the install for Ubuntu Jaunty 
and I have also tried compiling from source(racket-clean-tree.tgz) which I 
downloaded today(9/3/2010).  I can get racket to run with either install and I 
haven't run into issue there.  However if I try to run drracket I am getting an 
error of:

  SIGSEGV MAPERR si_code 1 fault on addr 0x4

Has this been seen before and if not how do I get more debugging information on 
it?

Thanks  --JayR