[plt-scheme] changes in loading "collects" between 352 and 352.6?

Has there been changes in the way collects are loaded since 352 "release"?
I upgraded to 352.6, and am noticing that my collects libs do not seem to
load at boot anymore, but wait untill something uses them.

Also: When I do something that "starts the guibuilder load", i'm getting the
error message:
dynamic-require: name is not provided: snip-class by module:
|,/home/corey/.plt-scheme/352.6/collects/guibuilder/readable|

from code that works under 352.  i'm not sure if this is a mred/gui change,
or a module system change.

Any help is apreciated.

Corey


for reference guibuilder/readable is:
(module readable mzscheme
  (require (lib "mred.ss" "mred")
           (lib "class.ss")
           "top-level.ss"
           "toolbar.ss")

  (define gui-snip-class%
    (class snip-class%
      (inherit set-classname set-version)

      (define/override (read f)
        (let ([e (make-object gb:edit%)])
          (send e prepare-to-load)
          (send e read-from-file f)
          (send e done-loading #t)
          (make-object gui-code-snip% e)))

      (super-new)
      (set-classname "(lib \"readable.ss\" \"guibuilder\")")
      (set-version 1)))

  (define gui-snip-class (new gui-snip-class%))

  (send (get-the-snip-class-list) add gui-snip-class)

  (define gui-code-snip%
    (class* editor-snip% (readable-snip<%>)
      (inherit get-editor set-min-width set-min-height set-snipclass
get-admin)

      (define/public (read-special source line column position)
        (send (get-editor) build-code #f #f))

      (define/override (write f)
        (send (get-editor) write-to-file f))
      (define/override (copy)
        (make-object gui-code-snip% (send (get-editor) copy-self)))

      (define/override (on-event dc x y editorx editory e)
        (if (send e button-down? 'right)
            (let ([tool-menu (make-object popup-menu%)])
              (add-tools #f tool-menu (lambda (c%)
                                        (send (get-editor) insert-element
c%)))
              (send (get-admin) popup-menu
                    tool-menu this
                    (- (send e get-x) x)
                    (- (send e get-y) y)))
            (super on-event dc x y editorx editory e)))

      (super-new)
      (set-snipclass gui-snip-class)))

  (provide gui-code-snip%))






and guibuilder.ss starts with:
(module guibuilder mzscheme
  (require (prefix mred: (lib "mred.ss" "mred"))
           (lib "class.ss")
           (lib "file.ss")
           (lib "pretty.ss")
           (lib "etc.ss")
           (lib "list.ss")
           (prefix framework: (lib "framework.ss" "framework"))
           "utils.ss"
           "top-level.ss"
           "toolbar.ss")

  ;; These modules implement snips for the various
  ;;  kinds of windows and controls.
  (require "base.ss"
           "panel.ss"
           "simple-control.ss"
           "text-field.ss"
           "multiple-choice.ss"
           "slider-guage.ss"
           "canvas.ss")



-- 
((lambda (y) (y y)) (lambda (y) (y y)))
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