PIC18F got some weird problem?

[Darrel Taylor]

Do you leave the Epic plugged into the board.

With mine, if I turn on a fluorescent light nearby, it'll reset the PIC.
If it's unplugged, it doesn't happen. But normally I just leave it plugged in and ignore the resets.

Also had a screen saver that does something to the parallel port when it activates. It resets the pic too. Stopped using that screen saver.
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[mister_e]

I already heard some strange stuff... but a screen saver that poll the parallel port

So their XP printer polling PATCH didn't solved the problem?

[NatureTech]

Hey yo steve and darrel,

It's working.I add some config on the inc file (STACK OVERFLOW & LVP OFF)(and that's weird too why that thing come in my way?) and it's working.So do goes for the SPI.It never jump to main loop this time.Thanks a lot guys.I safely blinked the LED'S this time.Talk about screen saver polling LPT's,geee..that's freaky.Lucky for me,i disable screen savers as i hate one =>.But the flourescent,is that for real?.Cuz i do work or test anything i do with my only one table lamp thats couple of inches away from my project desk.I don't face that kind of problem and especially 'resets' on pic?.Hmm..for sake i gotta bear in my mind.But i face a 50hz distortion ( using fluke dmm) but i knew that's a AC current nearby but i do re-calculate.Beside,the nature of flourecent driver (balast ,starter e.t.c) is more toward crude stuff.