Allowing root to use X
 

Does anyone know how to allow 'root' to use the X server when a common user is logged in? Whenever I try to run an X program as root, I get a message like this:

linux:/home/indigojo # yast2 &
[1] 2085
linux:/home/indigojo # Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

y2controlcenter: cannot connect to X server :0.0

How do I sort this out? I would have thought that root would have access to the X server anyway?!

BTW I'm using SuSE v9 professional

i'm no guru... but the short of the answer is that only one user has access to an x session at a time.

i get around it by issuing then switch to root, and run yast2

Thanks ... I had heard of xhost +localhost but I didn't realise you had to type it *before* going into root mode. I thought root had general access as with the file system.