Did you install them from different drives? Like, one in the CDR and one in the DVD? I remember a few older games having problems when stuff like that happened.
I used the same drive for both the D2 and D2: LOD install.
I think something's up w/ the Expansion disc.
Let's look at this....
First set of discs for D2 + LoD, on my newer Win XP PC
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First set of discs of D2 + LOD -- It just wouldn't run, period; I tried to run D2 w/out the expansion. I tried the version on disc, 1.03 -- no luck. I tried 1.11. No luck.
Then, I put in LOD; still no dice, whether it was version 1.09 or 1.11B.
So, I returned those, got new ones of both D2 and LOD today.
Second set of discs of D2 + LoD, on both my old and new PC's
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With D2 installed, ran regardless of if it was the version on the disc (1.03) or the newest version (1.11 B). Beautiful!!! Then, once I put in LoD, game no longer ran anymore (1.09). Throw in 1.11B for LOD, no dice still. This happened on both my new PC (Win XP) and old PC (Win 98 SE).
My Conclusion
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If I had a copyright protection issue "black-listing" me b/c I had other program installed (like say Nero or something), D2: Original would've never booted-up for me period, regardless of how many times I returned the game and exchanged them for another set of D2 CD's.
Given that, I also conclude that with LoD installed, I don't think the issue is the copyright protection. LoD should've worked, no problem.
I think the reason D2 and D2: LOD the first time around on my new PC didn't work b/c a disc was damaged for both D2 and D2: LOD.
And, second time around w/ new D2 + LOD discs -- where I got D2 going alone, but D2: LOD won't run, I think I got a bad-damaged LoD disc, myself.
Nothing else really makes anymore sense.