<div class="gmail_extra">I downloaded Saturday's build and get the same Seg Fault (the address is different) when I run my large app under DrRacket. However, the application runs fine while I compile it and run it standalone. <div class="gmail_quote">On Thu, Apr 19, 2012 at 9:32 AM, Williams, Doug <<a href="mailto:dwilliams@setcorp.com" target="_blank">dwilliams@setcorp.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div link="blue" vlink="purple" lang="EN-US"><div>I have downloaded the latest pre-release for v5.3 (plt-5.2.901.1-bin-i386-win32.exe). All of my PLaneT collections load and run fine. But, my large application at work fails to run – it dies during startup with “Seg Fault (internal error during gc) at 58720044” printed (twice) in a new window. It’s running under Windows XP. I’ve attached a screen shot of the Visual Studio debugger error window with slightly more information. Let me know if there is anything else I can provide. Doug </div></div> _________________________ Racket Developers list: <a href="http://lists.racket-lang.org/dev" target="_blank">http://lists.racket-lang.org/dev</a> </blockquote></div> </div>