unsure. there is a spellcheck plugin out there. it seems like you are using something different. i used it and was initially quite pleased with the results, but had to do away with it because it slowed the editor down so much.
Joined: Oct 05, 2002
I am using the built-in spell checker that was enabled in the final eclipse3.0 release..
If you are in Eclipse3.1 any version its under General->Editors->TextEditors->Spelling