The DataCAD Developer Network (DDN) is an online resource for information and support for DCAL® (DataCAD Applications Language) developers as well as anyone interested in creating fonts, toolbars, hatch patterns, or linetypes for use in DataCAD.
Do I need to take any precautions or special savings before I upgrade.
I have DC 11, and I have several files that I need. Also, I am wondering about any other precautions, such as symbols, that I may need to take.
There are not really any precautions you need to take. Just make sure you install 11 in its own folder. That way you don't overwrite anything and you can run version 10 and 11 at the same time. Just copy over and convert your hatch paterns, linetype files etc.
I would urge you to buy a new hard drive and install XP on it, and then transfer your data files. This will take about a day (because you have to install all your current software), but it will likely be a better running machine. And it safeguards your data.