Autodesk Inventor

[#1]

Hi Guys.  Well I've installed service pack 1.1 on his machine.  That didn't work.  It's still not writing the DWG file correctly.  Starting to think this may be a bug. But I'm able to do this with my profile so. PLEASE PLEASE help.  This is going to give me a heart attack.

Many thanks.

[#2]

Have you tried re-installing DWG TrueView? Re-installing DWG TrueView is failry painless. It is definetly worth a shot in this scenario.

You may want to try a repair solution for a corrupt window's profile in Inventor just for good measure. I've added  step 6-8 as a precaution. Please make sure that step 1 is followed. Note that the following solution will delete the application settings. You may want to 'Export' the application options so that they can be reloaded after the solution. 

To fix a corrupt profile 
1. Close all Autodesk and other open applications. Disable anti-virus, and lower UAC (User Account Control in Windows) to 'never notify.'
2. Go to Start > Run > type " regedit" to bring up the registry editor 
3. Browse to "HKEY_CURRENT_USER\Software\Autodesk\Inventor 
4. Export the the applicable registry version key for a back up 
5. Delete the applicable registry version key/hive (note Inventor 2013 is version 17, Inventor 2012 is version 16, etc...) 
6. Go to Start > command prompt > launch the program by right clicking and selecting Run As Administrator 
7. In the command prompt change the active directory (using command 'cd') to C:\program files\Autodesk\Inventor 20XX\bin) 
8. Type 'apprenticeregsvr.exe/install' *note: This step shouldn't be necessary but will not hurt anything . 
9. Launch Inventor and re-test the issue. 

Give this a try and let me know if this helps to resolve your issue. 

Thanks,