Hi,
I've been playing with Serato (SL1) since 2005 and 99% of the time it has been perfect.
Lack of lucky or not, in my last two gigs i've had the same problem, that i will try to explain in detail.
Usually i use turntables. In the middle of my set the needle got dirty with some kind of dust, and then the signal got weak (red bar over the gray bar in signal indicator). When this happened, the sound starts to fail as well.
So what i did to avoid the problem and gain time to mix to the other turntable : i press the INTERNAL mode button. I thought that when i pressed it, the sound would go back to normal, as the timecode signal would not be needed anymore. This is what i call 'panic internal mode'.
The problem was : when i went to internal mode, the music started to play in a VERY LOW pitch. And when i tried to go back to absolute mode the sound fails because the dirty needle. And i could not find in the interface where i could go back to normal pitch. So i got stuck and had to stop the dirty needle turntable and start the other deck, without mixing : not good !
Of course i know a dirty needle is not a Scratch Live problem ; in fact after i cleaned the needle, everything worked perfect again.
But what i would like to know is : WHY the hell when i pressed the Internal mode, the music played in SO LOW pitch and not played in the normal pitch it was in the absolute mode ? If this is a normal behaviour, is there a way to configure the internal mode to always play in the correct pitch ?
This 'panic internal mode' thing would be very useful in a critic situation ; if you are having problems with the timecode signal, you could just enter the internal mode , the music keeps playing , floor keeps happy, you gain time to fix things.
Thanks.

Well i have set my sleep setting to never, and shut down setting to never, still having the problem. This is funny, i cant figure it out i played in my music room for a good three hours, but at the on set of everyting it stopped, I plugged my power cord out, i was running on about 95 percnet of power charge. Nothing happened, i played for three hours then, then i plugged my power pack in and continued playing without a shut down. but the day was also very cool even though my windows were locked ,the room was pretty cool. Yesterday Sunday the day was cool not as cool, it stopped, i analized some files, played again then it stopped, each time it stopps i can hear my fan on the comp working hard. i think the comp is overloaded, took it down and did a litt alertations, tried to blow the fan out. hooked up again, but this time i connecet the cdjs first to the laptop and not the sl2. i played into a good 20 mins without any interuption, didn't hear the fan working hard, as a matter of fact didnt hear the fan. But then the outside temp fell quickly, consequently the room was cooler than befor. But i am so frustrated with this, i dont know if these cdj pull a lot ot power or what. i will see if by pluggin in the cdjs first made the difference. Or i have to get an extra fan on the subject while playing.