I dunno, but something's broken. By default, I view everyone's page in my style. When I clicked on 'View in Original Style' just now, it blipped and went back to my style. Tried again, same result.
Had a thought, just tried in Caarianna's journal. Hers went to 'original style', so it's either your LJ, or something in your sever-sector on LJ.
You might try clearing out your internet browser/ISP cache. (Which I don't know how to do, but that's fixed a couple of hiccups for me. One of those can't hurt, might help things. I'm sure someone else on your flist can tell you how.)
You might also try tinkering with your style; set everything to 'default', see how it looks. If it's okay, and later customizing makes it not okay, you have some info for support.