i have been using cs3 few years, , couple of weeks ago indesign program having troubles, uninstalled programs, , tried reinstall disc, there error messages , not reinstall. cleaned adobe files off system using windows 7. tips reinstall cs3? paul run cleaner tool ( cs cleaner tool installation problems | ccm, cs6, cs5.5, cs5, cs4, cs3 ) sure cs3 gone, run msconfig , turn off unnecessary startup programs , services, ant-virus , malware scanners, instant messengers, browser helpers , toolbars (but leave bonjour running if it's in list) , reboot. if see message running in diagnostic mode on reboot, cancel msconfig, run installer (and using normnally disabled administrator account won't hurt, either). after installation can run msconfig again , return normal startup. More discussions in InDesign adobe