I have a crazy problem with my keyboard on Windows 7, that just appeared in the last few months. When I press the letters o, u, and h at the same time, a backslash \ ends up being inserted before the h. Actually if I tap all three simultaneously I just get uo\ or ou. This problem does not occur with any other combination of letters that I have found. "So what?" You might think. Well, actually, in normal, fast typing it end up being a regular nuisance for words like hou\se, thou\gh, hou\r, tou\ch... woah, I actually just found another combo glitch. Apparently u+g+h inserts a y: ugyh. Weird!
I'm really curious what could be causing this. I am using the US English keyboard setup in Windows, althou\gh (aaagh!) I also have the International Phonetic Alphabet keyboard installed. Just tested and the problem happens whichever keyboard I have selected. I don't have another physical keyboard to test with. I am using the Microsoft Comfort Curve Keyboard 2000 v1.0. I have Autohotkey installed, but I turned that off, and I still get the same problem. I can't think of any other things that might cause this...
CRAZY! I haven't changed anything on my computer except maybe some Windows updates were installed, but now the keyboard glitches have shifted! OUH and UGH work fine now but I have discovered that OUN produces
OU<N (or ou,n lowercase), and there is another one which conveniently shows up in password I frequently use for sites I don't care about. The weird thing about the password one is that it all happens on one row, which makes the accepted answer questionable. It involves some symbol keys though.
Now the old problems are back again, with the new problems! Aaaaagh! Actually, there is one slight variation, now 'oun' produces 'ou,' instead of 'ou,n' What is going on?!?!?