I cannot seem to access the help files from within MS SQL 2000 on a Windows 2000 Workstation.

I get the error -
Cannot open the file: C:\Program Files\Microsoft SQL Server\80\Tools\Books\sql80.col.

I have installed it on another machine and it works fine, so the CD works fine. However, on one particular machine it doesn't seem to work. I have tried to install it numerous times.

Can anyone please help?