J2ME Problems

Right, I’ve been learning java (not ME) for a while, which has been fun, so I’ve decided to try and have a go at something for my phone. I installed the latest version of J2ME and it seemed fine, I was working through this tutorial and it was all cool. But when it tried to “build” or compile the program, I get the following error:

In order to compile you need to use the full J2SE SDK.
in order to use this feature please install J2SE SDK version 1.4 or later and reinstall the J2ME Wireless Toolkit.

‘java -version’ at a command prompt says I’m using 1.5.0_06 and I installed the wireless toolkit after that was all working.

What’s the problem/solution?