I've a problem with the "ButtonDown" and "ButtonUp" Event I set it with AddEvent("ib"&j+i*3,ButtonDown,"frmNum_ButtonDown") in a loop to serveral ImageButtons in RunTime. But they did not trigger. In my routines I will change the look of those ImageButtons while they are pressed with a different Image from a ImageList. If I set they with single events with the Designer it will work. If I use Click instead of ButtonDown or ButtonUp it will work too. If the sub will be called, it will change the image, but it shows me a red rectangle with a cross in it. Thanks for any help If I send the image from the ImageList to the form, it will appear correctly. I have no idea what's going on. Maybe someone had the same trouble before and shares the solution or have another idea.