I can confirm that unfortunately adobe reader still collects a considerable amount of memory, but not so fast anymore. I couldn't check how long it took but when coming back, indeed there was a runtime error and the application closed. From Don P. Story: "I've been in communication with some of the Adobe Acrobat engineers, the problem with the clock is with the form fields. They will fix it for Acrobat/Reader 8.0." Best regards, -Hendri.