Updating to xp,2000, etc is not an option so no reason to post those comments. I demo'd TI9.0 2337 and it worked PERFECTLY. I then had IT purchase 13 copies of it, and the recent version is TI9.1 3633 (workstation version). It installs on WIN98SE fine, but will not run after reboot, no error messages, no pop-ups, nothing. I read the same issue in the forum with acronis stating to open a support ticket, which is what I did - but they are seemingly pretty slow to answer. Did anybody that have this issue get it fixed?? I have 13 copies of software that I can not use!