Can anyone tell me what this means "OE removed access to the following unsafe attachments in your mail: Form.pdf" Can I do something so I can view this attachment? The person also sent it to me in word format form.doc but same thing.

Are you running any anti-virus ware???

Also, if you go into OE, and go to (i think) Tools>Options and there will be a security section/tab which will have a box that you can uncheck to allow all attachments.
Obviously, with this box unchecked, your gonna have to use your own discretion as to what you should open etc.