We have certain users who cannot open attachments in OWA (wether it be pdf, doc, xls). When they try they get the following message :
"to open this attachment, you must save it to your disk. right-click the link, and then save. with a single-button mouse, hold the button down over the link, and then click save."
The files are not in the registry keys for blocked owa files (level 1 and 2).
We are running Exchange 2003 with sp2.