Hello my old friends

I've just re-installed
THE game, and on my PC it works flawlessly (WinXP SP3).
Unfortunately, on my friend's PC (Win7 64bit) it is not so easy to get it working.
The problem is exactly the same as reported by Kas, so I've read the FAQs and tried the solution #21 (it's very similar although not identical, because the game doesn't start at all and the GPF windows popup immediately).
More infos about the issue:
1) The game is installed from "UnrealGoldHD 226b - DELACROIX"
2) It has been installed in a directory called c:\Games\UnrealGoldHD\..
3) It has been patched to 227f
and it worked.
4) It has been then patched to 227h and this didn't work.
5) If patched again to 227f it works.
6) We tried the 227g and it didn't work, as 227h.
7) Staying on 227h we tried the "Data Execution Prevention" settled for "Turn on for essential Windows programs and services only".
8) Staying on 227h we tried the "Data Execution Prevention" settled for "All programs" with exeption for Unreal.exe.
9) We also tried to run Unreal.exe as Administrator and in "WinXP compatibility mode".
Here follow the error message:
General protection fault!
History: CheckTag <- ULinkerLoad::ULinkerLoad <-
UObject::StaticAllocateObject <- (Class LevelInfo) <-
UObject::StaticConstructObject <- ULinkerLoad::CreateExport <-
(LevelInfo 1297018) <- ULinkerLoad::CreateImport <- IndexToObject <-
ULinkerLoad::CreateExport <- (LevelInfo0 3883) <- IndexToObject <-
ULinkerLoad<<UObject <- (LinkerLoad Transient.LinkerLoad 3883)) <-
ULevelBase::Serialize <- ULevel::Serialize <- LoadObject <- (Level
Entry.MyLevel 3883==3883/77758 3873 111) <- ULinkerLoad:: Preload <-
PreLoadObjects <- UObject::EndLoad <- UObject::StaticLoadObject <-
(Engine.Level None.MyLevel Entry) <- LoadLevel <-
UGameEngine::LoadMap <- UGameEngine::Init <- InitEngine
Just to mention - we've not messed up with the patches, only those related to "UnrealGoldHD" had been used

That's it, any help will be greatly appreciated from us!!!
... and thanks again for maintaining alive this wonderful game and its community