How to definitely disable validations in JSP files in Eclipse Ganymede

Question

I am using Eclipse Ganymede 3.4.2 as my primary IDE and I am facing a really frustrating problem from time to time.

Eclipse is getting really slow (I mean, REALLY slow, almost unusable) while validating the JSP code I am working on. I am using Struts 1 as my Web App Framework and jQuery as my JS library.

Is there a real way to disable/turn off Eclipse validations for JSP files only?

I went in Window > Preferences > Validation and unchecked JSP Content Validator and JSP Syntax Validator. Even if I uncheck everything related to HTML, JavaScript, JSP.... name it... Eclipse is still displaying some syntax errors (X marks, red underlines, that are in fact false positives as I am generating dynamic portion of code using Struts logic:equals tags.

I get the problem while working on complex JSPs files, and I got a decent laptop, so it is really an Eclipse problem. Restarting Eclipse usually fixes the problem for a while.

Thank you

Charles