Yard Pro was made by AYP (Electrolux then Husqvarna). If you have the model number (under the seat, on a label) you should be able to get an exploded diagram from Sear Parts website. Without a model number, it's hard to help you further. Here is a link that might be useful: Sears Parts Direct

I've never used Quattro Pro but you might try this while waiting... Open your spreadsheet, highlight and copy the entire sheet. Create a new spreadsheet, paste everything in the new spreadsheet and save it. Hopefully the new spreadsheet will not be locked. It's something to try anyway.

Ouch! I feel your pain in my pocket. I have neither, but love my old Brother Ult-D machines. I've read a lot of good things about the Quattro....I even had it demonstrated at my dealer store--but he knows I have enough machines to keep me satisfied. Congrats to you, anyway.

Lyfia, I have the 3/8" in my kitchen/breakfast area for 4 years, and had it installed in the LR about 2 years ago. When it's laid, I don't know if you could detect the 3/8" from the 1/2"~maybe it's a psychological thing. They both have a 10 year warranty on the polyurathane finish, not the floor itself. This means it can be buffed down and new poly can be applied. You could probably even change the color of the stain at that point. For the $$$, I would go with the 3/8"~no one will notice a difference.