i opened up a wav file (voicemail) today from moxier mail.

 

Using push on an exchange server, no problems here.

 

+1

 

No problems with push for me, either. Works great.

 

I also have push email using an Exchange Server.

I found the built-in PDF reader to be pretty crappy. I installed the most famous PDF App in the Market, but it could not handle the PDF files created by a Xerox Workstation. The developer, who was very responsive, said that his program could not handle the JBIG/J2000 file compression used by Xerox. He was really nice so I don't want to name his program -- he says he may support that compression method soon.

Long story short, the Beam PDF reader from the market did the trick and works flawlessly.

Bottom line: there are different compression methods for PDF files and you may want to try a different PDF reader to see if that fixes your situation.

 

Works fine here, but as already stated, need to have an app to open the specific file type you're looking at. This isn't WinMo - hardly anything works out of the box

If you don't need to modify office documents on your phone, but want to look at spreadsheets/word..."documents to go" app offers a perfectly functional free reader.