try to delete and replace the ui.Tab(0)

Signed-off-by: Jeff Carr <jcarr@wit.com>

README.md

@@ -8,6 +8,16 @@ Obviously I'm developing this app on Linux so if things are
 broken in the MacOS or Windows, check the Linux version if
 possible to see if it is also broken there.
 
+# IMPORTANT NOTES
+
+To use the cross platform UI, all GUI interactions must be
+done from within the same goroutine for it to work properly
+on Windows. This is an annoying limitation of how Windows works
+(or so it appears. maybe someone will figure out how to fix that)
+
+This means the Windows version of this GUI will probably always
+be sub-par verses the Linux and Macintosh versions
+
 # build
 
 ```

example-systray/Makefile

@@ -1,2 +1,6 @@
+build:
+	go build
+	./example-systray
+
 run:
 	go run *.go

test2/main.go

@@ -40,8 +40,13 @@ func main() {
 
 func buttonClick(i int, s string) {
 	log.Println("test2 buttonClick() i, s =", i, s)
+	cloudTab.Delete(0)
+
+	log.Println("Sleep(2000)")
+	time.Sleep(2000 * time.Millisecond)
+
 	smallBox = account1.AddAccountBox(nil, splashClose)
-	cloudTab.InsertAt("Intro", 1, smallBox)
+	cloudTab.InsertAt("Intro", 0, smallBox)
 	cloudTab.SetMargined(0, true)
 }