And to top it all - I finally started to look into PHD guiding - kept crashing the PC it was on. I finally noticed it said calibration error - so it wasn't actually guiding on all my shots - whcih makes them even more impressive.
Turns out the parallel port had a resource conflict problem, I switched to the standard DMA / IRQ / I/O memory settings and re-booted - all then worked calibrating PHD and autoguiding.
Went away came back 20 minutes later - fine - come back another 20 minutes later - PC had re-started (hmmm maybe its a heat build up, or a memory leak, or its going into screen saver mode and doing something un-sociable to PHD.
Anyone else every see PC re-boot when you run PHD for a while?
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