diff --git a/locale/en_GB/translations.ts b/locale/en_GB/translations.ts
index 9a407080..2e0ee567 100644
--- a/locale/en_GB/translations.ts
+++ b/locale/en_GB/translations.ts
@@ -382,5 +382,10 @@
         <translation>Enter the server name or ip address</translation>
         <extracomment>Title of KeyboardDialog when manually entering a server URL</extracomment>
     </message>
+    <message>
+        <source>...or enter server URL manually:</source>
+        <translation>…or enter server URL manually:</translation>
+        <extracomment>Instructions on initial app launch when the user is asked to manually enter a server URL</extracomment>
+    </message>
 </context>
 </TS>
diff --git a/source/api/UserLibrary.brs b/source/api/UserLibrary.brs
index 48e86c1e..f0ffafd4 100644
--- a/source/api/UserLibrary.brs
+++ b/source/api/UserLibrary.brs
@@ -13,15 +13,10 @@ end function
 
 sub MarkItemWatched(id as string)
     date = CreateObject("roDateTime")
-    dateStr = stri(date.getYear()).trim()
-    dateStr += leftPad(stri(date.getMonth()).trim(), "0", 2)
-    dateStr += leftPad(stri(date.getDayOfMonth()).trim(), "0", 2)
-    dateStr += leftPad(stri(date.getHours()).trim(), "0", 2)
-    dateStr += leftPad(stri(date.getMinutes()).trim(), "0", 2)
-    dateStr += leftPad(stri(date.getSeconds()).trim(), "0", 2)
-
+    dateStr = date.ToISOString()
     url = Substitute("Users/{0}/PlayedItems/{1}", get_setting("active_user"), id)
-    APIRequest(url, { "DatePlayed": dateStr })
+    req = APIRequest(url)
+    postVoid(req, FormatJson({ "DatePlayed": dateStr }))
 end sub
 
 function UnmarkItemWatched(id as string)
diff --git a/source/api/baserequest.brs b/source/api/baserequest.brs
index 21faa3f4..65803a98 100644
--- a/source/api/baserequest.brs
+++ b/source/api/baserequest.brs
@@ -76,13 +76,20 @@ function getJson(req)
     return json
 end function
 
-function postVoid(req, data = "" as string)
-    status = req.PostFromString(data)
-    if status = 200
-        return true
-    else
+function postVoid(req, data = "" as string) as boolean
+    req.setMessagePort(CreateObject("roMessagePort"))
+    req.AddHeader("Content-Type", "application/json")
+    req.AsyncPostFromString(data)
+    resp = wait(30000, req.GetMessagePort())
+    if type(resp) <> "roUrlEvent"
         return false
     end if
+
+    if resp.GetResponseCode() = 200
+        return true
+    end if
+
+    return false
 end function
 
 function postJson(req, data = "" as string)