I had to reformat my hard drive and reload Xp Pro. When I re-installed QBPro 2007 It said successfully installed but, no matter what it will not re-start, no error codes etc. I have logged on as the administrator and did and checked everything there website said to try. QBooks web site final answer is that "they know they have a problem and their working on it" Meanwhile I can't run the program. I have installed it on several other computers in our office and have had no problems. If anyone has had a similar problem, please ?????