diff --git a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/img/error.png b/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/img/error.png
deleted file mode 100644
index 5c832c00dc0500c8e7a14961aa0088bcceabc6a1..0000000000000000000000000000000000000000
Binary files a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/img/error.png and /dev/null differ
diff --git a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/img/wait.png b/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/img/wait.png
deleted file mode 100644
index 0fe45f49527805aa459580082564916ce59934d4..0000000000000000000000000000000000000000
Binary files a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/img/wait.png and /dev/null differ
diff --git a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/plugins/MicroscopyTechnology.js b/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/plugins/MicroscopyTechnology.js
index d0d3d304695147ff5716ba69fbf0b767dc535f28..6d3ba47ce6d3e13eda32d40fdbd8c53b9b37833b 100644
--- a/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/plugins/MicroscopyTechnology.js
+++ b/openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/plugins/MicroscopyTechnology.js
@@ -193,7 +193,7 @@ $.extend(MicroscopyTechnology.prototype, ELNLIMSPlugin.prototype, {
             // we will replace it asynchronously.
             var thumbnailImage = $("<img />",
                 {
-                    src: "./img/wait.png",
+                    src: "./img/image_loading.gif",
                     class: "img-responsive",
                     display: "inline",
                     "text-align": "center",
@@ -296,7 +296,7 @@ $.extend(MicroscopyTechnology.prototype, ELNLIMSPlugin.prototype, {
                                 if (result.getTotalCount() == 0) {
 
                                     // Thumbnail not found!
-                                    imD.attr("src", "./img/error.png");
+                                    imD.attr("src", "./img/image_unavailable.png");
                                     imD.attr("title", "Could not find a thumbnail for this dataset!");
 
                                     return;