Well, you could rename Normal.dot to get back to the application defaults,
but that's not necessary in this case.

1. For the first problem, assuming you don't have "Text boundaries" checked
on the View tab of Tools | Options, see "Margin marks or crop marks appear
on each corner of the page when you open a document in Word 2002 or in Word
2003"
http://support.microsoft.com/?kbid=839371

2. For the second, in a new document, without making any other changes, go
to the Layout tab of Page Setup, set the vertical alignment to Top, click
Default..., and answer yes.

For the corner marks, which are the result of having an East Asian language
enabled, see http://support.microsoft.com/?kbid=839371.

For the other problem, go to File > Page Setup > Layout and change the vertical
alignment dropdown from "Justified" to "Top". If this problem happens in all new
documents, you need to open the Normal.dot template and change the setting
there; then make and undo some change in the text, such as inserting and
deleting a space, and save the template.

--
Regards,
Jay Freedman
Microsoft Word MVP        FAQ: http://word.mvps.org
Email cannot be acknowledged; please post all follow-ups to the newsgroup so all may benefit.