I have saved some files in my documents. I don't remember that I was given a choice as to where to save them. Now when I try to open a file, Acrobat reader tries to open it and then I get an error message that says "there was an error opening this document. File does not begin with %PDF can some one tell me how to open these files. I am using windows 98. I no my machine is old but so am I and I still work sometimes. Thanks if you can help.