Clock Script - Was Working, Now Isn't

Several weeks ago I built a clock using the tutorial at

http://www.slbuilding.com/Clock_video.html

It worked fine. Now, however, the clock hands are appearing and disappearing at random. The prims the hands are on are still there; it seems like the texture is disappearing/appearing. Seemed to start with the last recommended upgrade to SL.

Here's the script for the minute hand

default
{
    state_entry()
    {
      llSetTimerEvent(1);  
    }
    
    timer()
    {
        float now = llGetWallclock();
        integer minute = (integer)now / 60;
        integer hour = minute / 60;
        minute = minute - (hour * 60);
        
	rotation hand_rot = llEuler2Rot(<0, 6 * minute * DEG_TO_RAD, 0>);
        
        llSetLocalRot(hand_rot);
        
    }

}

Any suggestions?

Copy this script into the clipboard, delete the script, create a new one, paste the clipboard into it, compile it and see if it works better.

I've got a few scripts to stop function, even the reset was not working, the only way was to regenerate them.

I've had lots of bad luck using llSetLocalRot.... my clocks would drift a little bit each day. I ended up using llSetTextureRotation and it has worked perfectly so far.