X only runs from 'root'

["Kevin Bewley" <kevin_(_dot_)_bewley_(_at_)_camr_(_dot_)_org_(_dot_)_uk>]

Hi,
   I have a strange problem. If I log into my system as me 'kevin' 
and type startx, Xwindows starts to get going (the screen goes 
black) then it fails and drops me back into my shell will a keyboard 
error. If I however, su up to root and do the same thing X will run 
fine. Does anyone have any ideas how to fix this. If you need the 
full error message it gives me I could post that too (something 
about a bad file descriptor). However, as I said, it all runs fine from 
'root'. HELP!

Kevin
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A1200 Kick 3.0 '060/50MHz + SCSI 50Mb RAM 
1.3Gb Hitachi HD 2x SCSI CD-ROM