Hey guys,
LU is working fine on my PC. My brother recently bought a new laptop with a Win 7 x64 OS. He has exactly the same problem that is described in this thread. We've been trying for hours to solve that, following every advise given in this thread.
We do run LU.exe directly from the GTAIII directory. It always launches singleplayer, no matter if we're Admin or not, if we use a compatibility mode or something else.
We even copied the whole GTAIII folders from my PC to his - Same problem.
So, what could be the reason for that? It must be something with Windows 7.. Normally, problems related to Admin rights and stuff can be sloved by disabling the UAC, but this does not seem to be the problem here. On my laptop, it even works with enabled UAC.
Here's another thing that might be related to it:
On my laptop, I set LU.exe to be run as Administrator. This caused a UAC shield symbol to appear next to the Icon. I think thats normal, and Google agrees with that.
On my brothers laptop, this does NOT happen! Neither with LU.exe nor with GTA3.exe or any other programs! I have absolutely no idea what could cause that, also google couldn't really help me there.
Maybe this helps somehow.. I or we also appreciate any help!
Ian