<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>We've got a couple of Windows labs with DrRacket 5.2.1 installed, and we're seeing really terrible response times: with a fairly short, simple graphics program (using the picturing-programs library) operating on small images, we click "run" and wait 20-30 seconds for a response.</div><div><br></div>I'm not actually teaching a Racket-based class in those labs this semester, so I haven't taken the time to track this down to specific examples, nor tried installing 5.3 to see if the problem goes away.  But is there a known performance or installation problem that would cause this?<div><br></div><div><br></div><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div>Stephen Bloch</div><div><a href="mailto:sbloch@adelphi.edu">sbloch@adelphi.edu</a></div><div><br></div></span><br class="Apple-interchange-newline"> </div> <br></body></html>