Originally Posted by penguin3107
Sounds to me like you forgot to check off the 'BlackBerry Attachment Service' when you upgraded to 4.5.
Before downgrading to 4.2 (which would be a mistake, in my opinion) try running the Application Loader in Desktop Manager again, and make sure you've got the Attachment Service selected to be installed on your device.
Thanks. I re-installed after checking off the Blackberry Attachment Service. This indeed solved the problem of opening .doc files. What is really frustrating is that I still cannot open .xls or PDF's, which I could under ver. 4.2.