thx 4 the tip, i'll try EDIT: just tried the cleaner, save is still around 70mb large, still CTDs... ( this are the last few lines: Return register: None [03/25/2013 - 11:02:26AM] Has stack callback: No [03/25/2013 - 11:02:26AM] Stack trace: [03/25/2013 - 11:02:26AM] [None].TrapPoisonGas.OnUpdate() - (requested call) [03/25/2013 - 11:02:26AM] Dumping stack 7111610: [03/25/2013 - 11:02:26AM] Frame count: 0 (Page count: 0) [03/25/2013 - 11:02:26AM] State: Waiting on other stack for call (Freeze state: Freezing) [03/25/2013 - 11:02:26AM] Type: Normal [03/25/2013 - 11:02:26AM] Return register: None [03/25/2013 - 11:02:26AM] Has stack callback: No [03/25/2013 - 11:02:26AM] Stack trace: [03/25/2013 - 11:02:26AM] [None].lightingball.OnUpdate() - (requested call) [03/25/2013 - 11:02:26AM] Dumping stack 7111611: [03/25/2013 - 11:02:26AM] Frame count: 0 (Page count: 0) [03/25/2013 - 11:02:26AM] State: Waiting on other stack for call (Freeze state: Freezing) [03/25/2013 - 11:02:26AM] Type: Normal [03/25/2013 - 11:02:26AM] Return register: None [03/25/2013 - 11:02:26AM] Has stack callback: No [03/25/2013 - 11:02:26AM] Stack trace: [03/25/2013 - 11:02:26AM] [None].BYOHHouseTrophyBaseScript.OnUpdate() - (requested call) [03/25/2013 - 11:02:26AM] Dumping stack 7111612: [03/25/2013 - 11:02:26AM] Frame count: 0 (Page count: 0) [03/25/2013 - 11:02:26AM] State: Waiting on other stack for call (Freeze state: Freezing) [03/25/2013 - 11:02:26AM] Type: Normal [03/25/2013 - 11:02:26AM] Return register: None [03/25/2013 - 11:02:26AM] Has stack callback: No [03/25/2013 - 11:02:26AM] Stack trace: [03/25/2013 - 11:02:26AM] [None].BYOHHouseInteriorSwapTrigger.OnUpdate() - (requested call) [03/25/2013 - 11:02:26AM] Dumping stack 7111613: [03/25/2013 - 11:02:26AM] Frame count: 0 (Page count: 0) [03/25/2013 - 11:02:26AM] State: Waiting on other stack for call (Freeze state: Freezing) [03/25/2013 - 11:02:26AM] Type: Normal [03/25/2013 - 11:02:26AM] Return register: None [03/25/2013 - 11:02:26AM] Has stack callback: No [03/25/2013 - 11:02:26AM] Stack trace: [03/25/2013 - 11:02:26AM] [None].TrapPoisonGas.OnUpdate() - (requested call) [03/25/2013 - 11:02:26AM] Dumping stack 7111614: [03/25/2013 - 11:02:26AM] Frame count: 0 (Page count: 0) [03/25/2013 - 11:02:26AM] State: Waiting on other stack for call (Freeze state: Freezing) [03/25/2013 - 11:02:26AM] Type: Normal [03/25/2013 - 11:02:26AM] Return register: None [03/25/2013 - 11:02:26AM] Has stack callback: No [03/25/2013 - 11:02:26AM] Stack trace: [03/25/2013 - 11:02:26AM] [None].lightingball.OnUpdate() - (requested call) [03/25/2013 - 11:02:26AM] Dumping stack 7111615: [03/25/2013 - 11:02:26AM] Frame count: 0 (Page count: 0) [03/25/2013 - 11:02:26AM] State: Waiting on other stack for call (Freeze state: Freezing) [03/25/2013 - 11:02:26AM] Type: Normal [03/25/2013 - 11:02:26AM] Retur i tried a smaller one, no crashing. but all of the smaller ones are waaaaay to long ago and i really dont want to play everything again. my hardware is good enough i think, runs battlefield 3 on all ultra with 4xaa without a single problem, crysis 3 too on nearly everything on ultra (shadows high), no heat increse to be registered. i used this hardware before this crashes started (means before installing dragonborn, with which they started). EDIT2: /push, any ideas, especially on the papyrus log?