I also have windows xp home edition with sp2. Make sure slow polling is unchecked in Edit/Preferences/General, see if that makes a difference. You might have to do a delete and reinstall. Before reinstallation do a search of HD to make sure all files are gone also do a search of the registry, start/run/regedit/edit/find. Where it says find put "Hiedi"and click find next, delete the folder. Repeat till you find nothing. Bring up the find box, type eraser it will bring up every single refference to eraser so look at what folder the value comes from and the name of the value itself you don't want to delete the wrong value that could messup your computer too. Do it till you find nothing. Generally use every HD cleaner to clean out every last reference to eraser, then you can reinstall Eraser 5.7