Mouse coordinates

[polymemnon]

I can't seem to get SCREENX and SCREENY to work.

Running Vista 64. CMCC is loaded with administrator privileges. Here is a simple script that isn't working:

SEQUENCE
WAIT( JS1.B2 );
A1 = SCREENWIDTH;
A2 = SCREENHEIGHT;
SCREENX = 396;
SCREENY = 699;
ENDSEQUENCE

Any ideas?