Well it remains a poor tongue in cheeck comment nonetheless. No need for Adobe bashing.
Remember, you have Adobe to thank for creating the PDF format in the first place and then making it an ISO standard so that people like CutePDF could make competitive file creation software you consider better.
If you think "who cares, I wouldn't miss PDF if it disappeared tomorrow", you've obviously never prepared and sent off documents to printing presses (amongst other examples I could quote).
Life is so much easier now you can just preflight and send off a PDF to press instead of the olden days method of having to gather up all the font files you used etc. etc. etc.
So, Adobe are not all bad.
Anyhow.... lets' not digress off topic....
Acrobat v5 is ANCIENT, and time/software/OSs have moved on. This leaves troubleshooting this issue akin to hitting a moving target. You might fix it one day and it breaks with an update the next.
What he said... although I wasn't aware they still made updates for v5
