Hi there you knowledgable folk!!! I have an HP deskjet 950c which has worked fine for over a year but now sometimes refuses to print. I can go through the procedure to print something out and it will get as far as showing the printer icon in the bottom right of the screen and opening the printer window it looks all set to print, but NOTHING comes out, or sometimes it will print part of the document or picture. At times this part printing is followed by gobbledegook.Also it thows up messages like the colour cartridge is not inserted correctly, whe I know it is. It might have just printed a perfect test page but still throw up that message. Shutting down and restarting the computer will usually clear the problem, but probably only for a short time. I know it may sound like a memory problem but I have 256k of memory which seems ample. I have tried installing an updated driver, only to find that it didn't work at all and I had to use system restore to get it working at all. Sorryit's long winded, but trying to explain the facts.