Dell - Technical Support The following error message may appear when printing to a Dell printer after upgrading to Microsoft Windows Vista from Windows XP: Communication not availableThe issue is only seen if the Windows Vista version of the printer driver is installed without first uninstalling the Windows XP driver. The Windows Vista printer driver is experiencing a USB communication conflict with the old Windows XP printer driver. The communication error message appears every time a print job is sent to the printer. By kfvdin Public bookmarkswith appeardellerrorfollowingmessageprinterprintingupgrading