trying to help my friend word program

he doesn't know too much about computer and i'm just trying to help him by phone so maybe someone else here can assist me
he said that while he is typing his document the margin will all the sudden changed and also the spaces between words increased

what would caused this problem, is it a bug in the program? a virus?
sorry i can't provide any info on the type of word program or os window version (left me a message about his problem)


will provide more info asap, just hoping someone here have encounter this problem and that can provide a quick answer

 

If you ask me, it sounds like a bad printer driver.
So, have him reinstall his printer with a new name (it'll put "copy" behind the new one--he doesn't even have to uninstall the old one). Make sure, of course, that you're using the correct driver for his model and OS, and make sure you close and relaunch Word before testing.
If that doesn't work, use "Word Troubleshooting" at www.theofficeexperts.com/word.htm