I am also having this problem. I bought UFT 3.0 Premiere several years ago but was not really ever able to use it because of the computer I had. I finally purchased a better, faster computer with XP, of course. I downloaded the patch, but I only get the error messad "Divide by Zero or Overflow Error" w/ "Close", no opportunity to ignore. Also, before going to the window, the screen temporarily goes black. When the window is up, the screen colors change strangely. When I close the window, the screen goes black then the screen colors return to normal. What am I missing?? Having purchased a new computer, I am really not up to buying a new program, especially since I never had to truly use this one!