Index: branches/5.1.x/core/admin_templates/js/uploader/uploader.js
===================================================================
diff -u -N -r12127 -r12657
--- branches/5.1.x/core/admin_templates/js/uploader/uploader.js	(.../uploader.js)	(revision 12127)
+++ branches/5.1.x/core/admin_templates/js/uploader/uploader.js	(.../uploader.js)	(revision 12657)
@@ -207,7 +207,7 @@
 		this.swf.addVariable('debugEnabled', escape('true')); // flash var
 	}
 
-	if (this.params.buttonPlaceholderId === false) {
+	if (this.params.buttonPlaceholderId === false || !UploadsManager.useTransparency) {
 		// only write flash, when button placeholder is not used
 		this.swf.write(holder);
 		this.flash = document.getElementById(this.flash_id);
@@ -234,7 +234,7 @@
 
 Uploader.prototype.moveOutside = function() {
 	// move flash outside scroll_container, but keeps it's position on screen
-	if (!UploadsManager.useTransparency) {
+	if (!UploadsManager.useTransparency || this._moved) {
 		// moving only needed when transparency us used (e.g. in admin)
 		return ;
 	}
@@ -364,7 +364,7 @@
 	this._prepareFiles();
 
 	// sync position of all uploaders below current, because file queue height change will not affect their positions
-	UploadsManager.iterate('syncBrowseButton');
+	UploadsManager.iterate('syncBrowseButton', 0);
 }
 
 Uploader.prototype.removeFile = function (file) {