missing resources when try to open exel file

Hi guys 

I have this one problem driving me insane. 

One of our users have a problem with excel. 
It seems to be pretty random. it even does this with small standard excel files. 

When trying to open a new exel file, it says missing resources.
I have tried to kill everything in task manager using the memory, so it uses about 30% memory but still. 
i have tried to expand the page file 
tried to reinstall office 
- But with no luck 

The client is a 32 bit with 4 gigs of ram. 

I've readden on a forum that it could be a office error if you tried to mark all colums. 
But the user dont mark anything when the error occurs. 

Looking forward to hear from you :-)