A week earlier I ran into the same situation with the Adobe Installer for ATM 3.82. I dragged back ATM 3.81 from an external hard drive and the problems continued. So I zapped pRAM and the problems disappeared. I dragged ATM 3.82 back over and have had no problems. The Quadra 610 DOS model has been a real problem for me, first with 7.5 then 7.51, but zapping pRAM solved them.
Different models seem to have varying problems.
The real dilemma in this discussion is that some of the supposed sources of the problems remain speculative. Zapping pRAM is not an end all for all problems. For example, a single crash due to a pRAM problem may damage the system file. Many people, unfortunately, seem to ignore the possibility of a pRAM problem and I've seen message threads where frustrated users reinstalled the systems software over and over again without considering the options of zapping pRAM, running the popular utilities like Symantec 's Disk Doctor, etc. to see if there was something else contributing to their problem. As sysop of MacWeek Forum on Ziffnet, CompuServe, he sees and notes the problems of many users.