HELP: hot spot analysis runs but never ends

Discussion created by fogg on Apr 9, 2012
I'm in need of advice about Hot Spot Analysis in ArcMap 9.2: I have a grid of squares (shapefile) with a field with counts of events. They include values from 0 to over 40. When I run Hot Spot Analysis or Spatial Autocorrelation, the program runs (no error messages) but never stops (I aborted it after 20 hrs). Any possible reason for this? Thank you for any advice!!