Also vanilla oblivion launcher crashes exactly the same way. And Shockwave Flash has crashed several times at the same time, perhaps in sympathy.
This has been caused by me uninstalling and reinstalling everything due to reaching a door that, every time I tried to go through it the game crashed. Though it was ok if generally unstable if I left that door alone. So this is significant progress in one direction, I suppose :(
can anyone help? The mods look ok to me (but what do I know). The Wrye Bash thing says they're all green. The order is:
Active Mod Files:
Click here to expand or collapse this section
[xml]00 Oblivion.esm
01 Morrowind_ob.esm
02 Unofficial Oblivion Patch.esp [Version 3.4.4]
03 UOPS Additional Changes.esp
04 DLCShiveringIsles.esp
05 DLCHorseArmor.esp
06 DLCOrrery.esp
07 DLCVileLair.esp
08 DLCMehrunesRazor.esp
09 DLCSpellTomes.esp
0A DLCThievesDen.esp
0B Morrowind_ob - Morroblivion_Chargen_And_Transport_Mod_v10.esp
0C Morrowind_ob - MorroblivionTreeReplacer.esp
0D Morrowind_ob - Morroblivion Maps.esp
0E Morrowind_ob - ClothingReplacer.esp
0F Morrowind_ob - MorroblivionWater.esp
10 Morrowind_ob - Conversation.esp
11 ProtocolledDialogs.esp
12 DLCFrostcrag.esp
13 Knights.esp
14 Morrowind_ob - Unique Grass.esp15 Morrowind_ob - Silt Striders.esp
16 Morrowind_ob - UCWUS.esp [Version BETA5]
[/xml]
If anyone can see what's wrong, remember my n00b status, and explain it as though I were a cretin....
Pretty please and thank you.

Does anyone know of any
Does anyone know of any common problems, conflicts or whatever that would cause Morroblivion to crash within seconds of being fired up? I'm pretty sure I followed the guide on this site to the letter last time, same result though.