Hopefully this Microsoft KB link will help.
http://support.microsoft.com/kb/307844

Timothy
 -------------- Original message ----------------------
From: Diane Kroeckel <[log in to unmask]>
> When I reformatted my HD, the drive letter changed to D, with the other
> partition being E.  I don't have a C drive on my computer now.
> 
> Will I mess everything up if I change my main drive from D to C?  Will
> the installed programs know where to find their files?
> 
> Diane Kroeckel
> 
>                          PCBUILD's List Owners:
>                       Bob Wright<[log in to unmask]>
>                        Drew Dunn<[log in to unmask]>

                         PCBUILD's List Owners:
                      Bob Wright<[log in to unmask]>
                       Drew Dunn<[log in to unmask]>