Hi! I have D2 + LOD properly installed, patched and equipped with D2Loader (all steps according to the guidelines). I've been interested only in the single player stuff and with the last days played through the first four acts without any technical / installation-related problems. However in the last act, during the ancients quest, the game exits randomly with the notorious 'guys we have a big error' message.

Some debug output:

PROGRAM: Diablo II D2Loader v1.11b - Build On Dec 29 2006
-------- FILE: LINE: 422 --------

Halt
Location : , line #422
Expression : Unrecoverable internal error 00c22ce3

Reinstalling D2 & trying to run it on vista instead of ubuntu+wine didn't help. Does someone have any experience or ideas on this? Is it a hardware, installation or D2loader issue?

has it happened more then once? i suggest returning to the ancients and trying it again. it seemed you've just got there and it just happened 1 time only

nope, I've tried about 4-5 times, as I said once even under a different OS. Still the same error message at random times when fighting the ancients. Maybe they have deemed me unworthy? ;P