never, and not yet with version 5... :=)
Version 5 is a developement version :=)
Art will have some good surprises when it will come back from sun !
Coud be an issue with the video driver, i think there could be a timing
conflict, too much dead time in the video driver thread, causing the card to
issue a turn off monitor. The mach2 ring0 driver is a real time process.
Does you driver use an interupt or not ? if not try to activate the interupt
(sometime this setting is in the motherboard bios, sometimes in the driver
setup, sometimes no settings) to see if it solves the problem.
Olivier.