How do I "wait until no key is down" when using the keyboard matrix? I've tried the obvious, setting all rows to 0, nop:ing, and testing if the columns were zero with tst.b ($6000xx). Should I use the keyboard buffer? Niklas Brunlid (e96nbr@efd.lth.se or nma95nbr@student1.lu.se) PQF Quote follows: "Oook!"