View of PDF file changes or looks strange when opening a file.

Question

Hi all,
I have strange problem, that is haunting me.
A PDF file is created from Microsoft Dynamics AX 2009 system. I guess that Microsoft have their own pdf-writer-engine.
From time to time, we have seen that the PDF files, on some computers looks correct, on others gibberish.
One user has a Win7 machine, 32-bit system. 4gb of memory. Today he opened a PDF file from the AX system. When He opened the file on his desktop., it looked fine. After 5 seconds. The entire view changed to strange signs and letters. I opened the same file on a Win-7, 64 bit machine. Everything looks allrigt.  Both of us have Adobe Reader 11.04 installed. one-two houes after the first error, he opened another PDF file. That started to look like gibberish, and after 5 seconds it looked allright.
In general we only see these types of errors something like 1 out of a hundred times. Most common is that the view is gibberish from the beginning, and never changes.
Any idea to solve this, will be much appriciated
/Hector

Answer 1

I think this is done by the browser when it is saving a temporary file and there's already a file with that exact name in the temp folder.