I recently upgraded(?) to 2004 from 2000. -OS Windows 2000 Professiomnal pentiumII I think, 256 MB ram- In light of problems I had with other upgrades I thought it best to work the kinks out before I stopped using 2000. I had to get another computer since "side by side" installation is not an option. I also installed Service Pack 1 (UL) single user unlocked version of LDDT 2004. As soon as I installed SP1, LDDT and Civil Design were removed from acces through the desktop. I was only able to use MAP and could not access the other menu pallets. I had to uninstall LDDT and Civil and reinstall. Did I do something wrong installing SP1? Is SP1 still installed since I had have LDDT installed before installing SP1? Is SP1 necessary? Any response would be appreciated. Thanks, Richard Truelove