Tried to install Office 2000 on win 98_se.Got most of they way and then received an error message and had to reboot.When I tried to start the installation once again it now gave the message "Installation ended prematurely becauce of an error" and then closes.I have deleated all temp files and ran 3 different registry cleaners and still can't get the installation to run.What must I do without reformatting to get it going?