When I'm in the monastery after ringing the seventh bell, I click on the rope and the game pauses (mouse still moves) for about a minute and then the game completely crashes. I've tried using the Windows version, too, and that doesn't seem to help at all... Any suggestions?

I had a very similar experience in the final step in the conservatory, but I just restarted the game and it played normally for me the second time. Did you give the gog version a second try before going to the windows one?

Yeah, I've tried the standard GOG version and the Windows version tens of times. GOG support asked me to send them my savegame but I haven't heard anything from them in like a month. I'm getting close to giving up at this point :(

Wow, sorry, I know it's frustrating. Here's what I'm thinking. If the exact same thing is happening on two different versions, then maybe it's your system. Some obscure setting or something. Tell you what, post exactly what system you are using, along with os, and I'll try and help you by doing some searches in the next couple of days and see if I can find any fixes on the web.

That's awesome of you! Thank you! Here's my DXDIAG information. I can also email you my savegame or something if that would help!

-----------------
System Information
------------------
Time of this report: 5/23/2012, 21:01:32
Machine name: MARATHON
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120330-1504)
Language: English (Regional Setting: English)
System Manufacturer: Alienware
System Model: M11x R2
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i7 CPU U 640 @ 1.20GHz (4 CPUs), ~1.2GHz
Memory: 8192MB RAM
Available OS Memory: 7990MB RAM
Page File: 2673MB used, 13304MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode


---------------
Display Devices
---------------
Card name: Intel(R) HD Graphics
Manufacturer: Intel Corporation
Chip type: Intel(R) HD Graphics (Core i7)
DAC type: Internal
Device Key: Enum\PCI\VEN_8086&DEV_0046&SUBSYS_04651028&REV_02
Display Memory: 4050 MB
Dedicated Memory: 978 MB
Shared Memory: 3071 MB
Current Mode: 1366 x 768 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: unknown
Monitor Id: AUO105C
Native Mode: 1366 x 768(p) (60.045Hz)
Output Type: Internal
Driver Name: igdumd64.dll,igd10umd64.dll,igdumdx32,igd10umd32
Driver File Version: 8.15.0010.2622 (English)
Driver Version: 8.15.10.2622
DDI Version: 10.1
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 1/10/2012 22:28:32, 8313856 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B78E66-4306-11CF-1256-6924BCC2C535}
Vendor ID: 0x10DE
Device ID: 0x0CAF
SubSys ID: 0x04651028

Do me a favor and describe the crash in a bit more detail: you enter the code for the 7th bell, and then....?