I upgraded my iMac to Leopard and my wife has a tile game she likes to play called Farmers Mahjongg. When she tried to play it the tiles all disappear when you click on the first one. I went to the web site and tried to download an update and I keep getting this warning each time I click on download: /Users/barrydunlap/Desktop/JwzJTmBZ.exe.part could not be saved, because you cannot change the contents of that folder. Change the folder properties and try again, or try saving in a different location. Any ideas?