I am running AcadLT 14 on a Windows 7 machine. I recently had to have the hard drive replaced but was able to copy the file system to the new drive. Now I am unable to get AcadLT to start. No error messages - the little spinning "working Icon" comes on for a few seconds - then nothing.
I purchased this software as part of a bundle with Inventor LT which still works fine. The issue only occurs with AutoCAD LT. I have not tried to download and re-install yet - I'm kind of hoping for a simpler solution.
BTW - I am a pretty casual/infrequent user. I just use it occasionaly for my consulting business. I point this out as I do not feel I'm very qualified to troubleshoot.