Classpath problem

I've read the FAQ, searched the list archives, etc., but still can't
resolve the following issue:

I'm running a servlet in Tomcat 5.0.19 (on Windows XP) and seem to be
able to connect and debug using JSwat 3.10.  However, there is one minor
problem, that I think is associated with the classpath.

I first start Tomcat.  I then bring up JSwat and set my classpath and
sourcepath in the Session Settings dialog.  Everything seems to resolve
correctly, and I can see and open all of my source files from the
Sources tab.

However, sometimes after I "Attach" to Tomcat, I get hundreds of "cannot
find symbol" errors in my source with wavy red lines below.  Oddly
enough, I can still set breakpoints and step through the source, and it
only seems to happen some of the time (though I can force it to happen
by running "Fix Imports" at this point).

I noticed specifically that the settings in the Classes tab change
before and after I Attach.  Before, my correct .jars were present.
After, only tools.jar and bootstrap.jar were listed. I believe this is
fundamentally the root of the issue.

So, is there a way to force my original classpath setting to stay fixed
after Attach'ing?  Or is there some other solution that will allow me to
debug given my configuration?  I also tried launching Tomcat from JSwat,
thinking that this would force it to hold onto the classpath I defined,
but never could get the config details right. (For reference, I
currently call "catalina.bat jpda start" after setting the necessary
envvars.)

Thanks.

Jay