Opening PDFs get "file path is not valid" errmsg

11-30  Source: Network gathering  Views:1 

very strange...
I dumped a bunch of PDFs, word, excel & ppt files onto the documents folder. 
All the PDFs give me "file path is not valid" errmsg and cannot be opened.
But the word, excel & ppt files can be opened.
Can someone help me figure it out? 
Go to Solution.
solution is here:
I feel also compelled to mention that I've had a ticket open at rim for this issue since 04/21 and have been escalated numerous times and yet all this time rim support has had no clue how simple the problem is to fix. This solution was posted >2 full days ago.
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