I had been using TI11 successfully for a long time. I ran into the problem that the boot TI 11 boot cd does not see sata drives. I installed TI2009 evaluation to see if it fixed the boot drive issue. Big problems when I went to remove TI2009 and re-install TI 11. Windows Vista was seriously corrupted. It took several hours to discover that all the Vista start up services were disabled. Vista is working now, but when I tried to re-install TI 11, it does not work. I start TI 11 and get a message: "unable to open (initialize) computer". "unable to initialize snapshot manager library" "version conflict, modules have incompatible versions".