My friend is having problems with his new computer.  His wife let her friend use the computer and now everything on the screen is upside down except for when they go on the internet then it will be normal again.  Also the address bar is gone. Does anyone KNOW the solution into getting this problem fixed.  roba_ent......  Hummmmmmmmmmm   open Internet explorer , click on the view tab up top ....SELECT toolbars ...... then make sure there is a tick in front of Address bar ...... that should get back the address bar.
Now the other issue.......  Do you mean that when online it displays correctly and when off-line it inverts everything ....... do I have that correct?

dl65  "Upside down screen"?!  Sounds like the work of a rogue program.With software from ATI or nVidia installed, it's possible to rotate the screen view by 90, 180, or 270 degrees; this feature can be usually be accessed VIA Display Properties, Settings, Advanced.  But, as far as I know, that would affect all applications.  Since your IE is displaying the normal way, that seems to indicate some other cause for this, perhaps, as robpomeroy SAID, some "rogue program".