I did yesterday and still can't see the RAID when I look from KDE which is strange because it worked that way when I used 23559 so I assumed you just meant reinstall mdadm which I have just done again just now and yet to reboot, should it need another reboot. I have attached a print out out of the reinstall of mdadm and the current printout of dmesg.
I will do another boot and check dmsg and see if it mentions the RAID array, it finds the drives as I can see them listed but that's it and I looking to see a RAID speed test or just a mention of the RAID array
thanks
Beeker