You have something wrong. I have imported .r3d files into CS5 and they play in realtime at 1/4 resolution.
Please post somemore specific information about your system, files, etc.
the specs for my computer
motherboard p5b delux
graphics card nvidia 8800 gtx
250 gb hard drives in raid zero
quadcore intell core2 extreme processor
the files are 25 frames per second 4k but not shure what build they where shot on
instaled cs5 on another machine but that machine plays them back as black video as well can still see the audio though
after effects has the same problem as well
not shure what else to tell you
but its getting real anoying got stuff to edit and cant get it done
It sure sounds like you have something set wrong. I have no idea what it could be.
Try downloading some different .r3d files and see if you have the same problem.
There is an update for the Red plugin.
Maybe it will help.
problemsolved turns out the meta data was set funny when we shot changed that and everything worked