Language / Polish letters Alt-codes... Anyone? [60]

I'm having problems with the ś key. I do alt-s, but nothing happens. All the comes up is a hp screen with bunch of numbers on it.

Language / Polish letters Alt-codes... Anyone? [60]

How does that help me? I still can't make the ś key

Language / Polish letters Alt-codes... Anyone? [60]

I tried doing that, but I have the same problem. I have the right polish (programmers) thing, and i pressed alt 0156, but for some reason it won't work