john done all that has cured blinking screen / black bars over and above timeline / midi input has changed now clocks the new track i.e. 2 tracks 2 midi chanels in garage band and logic 9. fingers crossed yet still getting this warning sign when running 2 ez tracks together but the track keeps going see screenshot thinking back re the original problem i was adding your 4 beat percussion loops into a ghost pattern and these are 8 beat loops maybe this was the problem . i thought it would cover the bar loop automatically but it doesn’t . many thanks 
there is no option as you describe in get info panel only in preferences then your options are as i have described. previously gb 605 is a 24 bit prog the warning message coming up is from toontrack saying i am running a 32 bit version of ez drummer my logic 9 is a 32 bit prog with the option to knock it down to 24 bit . see screen shot the prog seems to work you just have to keep defeating the error message . its very annoying as there are some great features like the open high hat options that let you replicate a slosh and make it swing too .this is great breakthrough over ez 1 yet you theres no mention of it in your demos . 
