It is quite obvious what this little program should do.
1 ONKEYGOSUB10:KEY(2)ON
5 COLOR ,6:COLOR ,10:GOTO 5
10 PRINT"why program just slows down and prints nothing? :-(":RETURN
I understand that it slows down because of that interrupt, but I can´t understand why it doesn´t print anything? 
With KEY(1)ON it works like it should, but with 2,3,4 and 5 it doesn´t.
Why?
I used MSX - swedish on blueMSX.
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