I've recently downloaded and installed v8.1 and am trying to run my Gadget2 IC and output visualization scripts, however when I try to run lines such as WRITE_PNG, foutName, TVRD() or WRITE_JPEG, foutName, TVRD(), QUALITY=75 I get these errors % Attempt to call undefined procedure/function: 'WRITE_PNG'. or % Attempt to call undefined procedure/function: 'WRITE_JPEG'. I also get the same type of error when I try and use PLOT3D. When I look in my IDL folders I find that I do have a write_bmp.pro, write_gif.pro and a couple others and these functions do indeed work but I do not have one for write_png.pro nor a write_jpeg.pro. There's a write_jpeg2000.pro but can't get that one to work either. Neither can I find any *.pro file which wraps PLOT3D. I have dl'ed the 8.0.1 (with patch) version and uninstalled and re-installed 8.1 and still no go. Anybody have any clue where I should go and what I should do from here? Thanks Tim