Hi all,

In one of my little drag-and drop utilities there is mild
misbehavior of the cursor that I animate by the simplest CURSOR 
commands to do one 45 degree turn of a wheel for every file
processed.

The misbehavior seen is unpredictable change of the cursor with
respect to background (transparency and b/w inversion seem to be
involved). I believe I have seen similar symptoms in a few other
apps (not mine).

I am doing no graphics stuff like COPYBITS myself; the most
dangerous thing I do is probably frequent appeals to "CALL
USERESFILE x%". But I do activate the appropriate resource file
before every call to CURSOR y%.

Could anyone suggest a possible fix?

Should I be having the application resource fork foremost
99.7% of the time?  It contains the CURS resources.

Cheers,

            Laurent S. (in Paris)

PS. The utility is at

      http://topo.math.u-psud.fr/~lcs/BSR2dvi/