Instant crash on opening inventory huh... Sounds like something with installing the high res did not go right. I was able to reproduce a similiar crash problem when I was tampering around with creating a switch between normal and high res.
--Double Post--
Just reproduced the error. Your friend is running DirectDraw video mode. He has the high res files installed but the d2mod plug in has not been updated to use the high res plug in. Since the high res plug in is not activating its causing that error.
--Triple Post--
Your friend needs to check his D2mod.ini file's dll list. It should look like this:
Code:
D2mod=D2mod.dll
D2NewStats=D2NewStats.dll
LevelFX=LevelFX.dll
Utility=Utility.dll
MercMod=MercMod.dll
Portal=Portal.dll
ExtLvl=ExtLvl.dll
GemFix=GemFix.dll
LvlReq=LvlReq.dll
CharStart=CharStart.dll
NewTxt=NewTxt.dll
MercDesc=MercDesc.dll
d2expres=d2expres.dll
Double check to see if the d2expres line is in that list of dll files as displayed (with absolutely nothing else on the line). If the d2mod.ini file checks out try running d2modsetup to install the d2mod plugin (and if first time it asks to uninstall say yes then run it again to install).