Hi, I have a problem with my Java installation.
I'm using Slackware 14.1 64 bit with AlienBob's multilib setup.

I followed the instructions here
and checked the version under normal user to get this output:
java version "1.7.0_65"
OpenJDK Runtime Environment (IcedTea 2.5.2) (Slackware)
OpenJDK 64-Bit Server VM (build 24.65-b04, mixed mode)

Checked under root and got this:
/bin/ksh: java: not found [No such file or directory]

It seems strange that it is found with which command under normal user(/usr/lib64/java/bin/java) and not root.

Anyone have idea's?

Check the PATH variable. Are both users running ksh? Maybe the user is running bash and the root is using ksh and they have the PATH variable set on different ways.