I have encountered a strange problem with the stopwatch window while running code on the Picmaster emulator. I am adjusting the timing of a critical loop. I have a breakpoint at the start of the loop. I zero the Stopwatch and hit go. The loop times OK. I hit go, the time is OK, I hit go the time runs 2 cycles longer. Every time on the third time through. Now I redo the test a little different: I zero the stopwatch and hit go. The loop times OK. I re-zero the stopwatch and hit go. The loop times OK. I re-zero the stopwatch and hit go. The loop times OK. If I keep going while re-zeroing each time the loop time is OK. If I keep going without re-zeroing every few times I get 2 cycles extra. Now if I run the simulator with or without re-zeroing the timing is OK. Is there a Breakpoint issue with the emulator that I don't know about here? - -Mark