I have a character that is can't leave Solstheim. I've tried leaving via the ship captain, and by using the console command COC .

It goes to the load screen and the program stops responding, I have to use Task Manager to escape from the game and kill it.

I have made sure my graphics card drivers are up to date, run virus scanners, reverted back to a restore point from a couple of months ago before the problem occured, and reinstalled Skyrim (although it wasn't apparently a complete/clean reinstall).

Any ideas?

I get the error message:

Description:
A problem caused this program to stop interacting with Windows.

Problem signature:
Problem Event Name: AppHangB1
Application Name: TESV.exe
Application Version: 1.9.32.0
Application Timestamp: 51437ce5
Hang Signature: 826f
Hang Type: 2048
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Hang Signature 1: 826fdba625ab970690f9f498da940cb7
Additional Hang Signature 2: 47ea
Additional Hang Signature 3: 47ea05b988a3783f7579e9315ebe56de
Additional Hang Signature 4: 826f
Additional Hang Signature 5: 826fdba625ab970690f9f498da940cb7
Additional Hang Signature 6: 47ea
Additional Hang Signature 7: 47ea05b988a3783f7579e9315ebe56de