userpoints_no_negative error: use '<?php' not '<?'

I'm not sure if this is the case on *nix servers, but on our server using Windows XP and IIS, userpoints_no_negative's use of '<?' to mark the beginning of php results in the server not executing the code, but instead printing it out to the browser. This causes no end of site-wide issues, including a messed up update run.
This is fixed by changing '<?' to '<?php'.
I've run into this occasionally in other modules - please keep this in mind! Not all of us are fortunate enough to be running *nix and Apache. (At least I think that's the cause... either way being more specific about the language fixes the problem.)

Thanks!
-Michael