Ghost 15 won't let me define an incremental backup. The selection is in grey. A note at the bottom says a drive is already defined in an incremental. I have deleted all backup jobs, but still get the same result. I uninstalled and reinstalled Ghost - still the same result. I'm running Win7, 64bit. I did get an error message on the uninstall, and on the reinstall "Error: Failed to have access running. Install VSSWProvider function in MSInstallVSSProvider function".