Please read the following Adobe Tech document and see if those suggested fixes help you. Also, it would be very helpful in future to provide the version of Acrobat (Reader, Standard, Pro, 5,6,7, etc) you are having the trouble with. [url=http://www.adobe.com/support/techdocs/329444.php]http://www.adobe.com/support/techdocs/329444.php[/url]
[url=http://www.adobe.com/support/techdocs/329444.php]http://www.adobe.com/support/techdocs/329444.php[/url]
Hope that helps,
Dimitri Munkirs
WindJack Solutions
[url=http://www.windjack.com]www.windjack.com[/url]
Dimitri Munkirs
WindJack Solutions
pdfscripting.com