You are worrying way too much and working way too hard. This seems to be clearly a networking issue. Wendell is right. This is where support could likely log in and fix it very quickly. I also wouldn't be worried about these error messages. They are all based on the same thing. You can't or you are losing your connection. These aren't Windows errors. That would be frightening. Those can be hard to run down.
The very first error at the top asks if you have run the database tuner. Not sure why this would help and not sure if AC would even run, but to even see that message would mean you haven't run it. If you haven't that is the first thing you should do.
Basically, this boils down to two things. Where is your AC folder. And, can your program find it over the network. Obviously, it has before. There are three paths you want to check.
1. If the name of your computer is GRAEF, then when you access the Amazing Charts folder over the network, you should see at the top \\GRAEF\Amazing Charts\ It may say Network -> GRAEF -> Amazing Charts, but if you click in the address bar, it will default to \\GRAEF\Amazing Charts This is where your AmazingCharts.mdf SQL database is. Square one is to make sure you can access that folder from the computer. You could just open a folder, Windows Explorer or My Computer and on the address window just type \\GRAEF\Amazing Charts\ That should open the AC folder. If you can't do that, then you have problems with your network and that will need to be fixed before you can do anything else.
Now GRAEF is the name of the computer that AC is on. So, you browse to the name of the computer and the name of the folder. Some people have better luck using the IP address. So, in that instance if the computer called GRAEF had an IP address of 192.168.16.2, then you could type \\192.168.16.2\Amazing Charts. If you go that route make sure that the IP address is static and not dynamic.
2. In the main AC folder on the "server" is a file called AmazingCharts.xml. First, make sure it is there, and second, open it and make sure the path it contains is the same path we have been talking about. Mine looks like this:
D:\Amazing Charts\AmazingCharts.mdf For me, D:\ is the drive letter on my server where AC resides. Yours may say:
C:\Amazing Charts\AmazingCharts.mdf. This file, the one you click on when AC is searching for the database, tells your AC program that it can find the SQL database on the C:\ drive in a folder called Amazing Charts. So, if this file doesn't point toward the AC database, you will have issues. To be honest, this file is made when you install AC, and it likely will be correct.
3. Finally, open your AC program until you get to the logon screen. At the top of the screen in the white bar, you will see the name of your practice and just below it the words: Electronic Medical Record System. If you put your mouse pointer between those two phrases and right-click, a new window will open that says: Reset Database Path at the top left. The first line will tell you the port and the name of the server, in your case GRAEF (the one I made up). The second line is the most important. If you are connected properly, it will give you your path. It will say: The path to the main database is:
\\GRAEF\Amazing Charts\AmazingCharts.mdf. Obviously this path needs to basically match the path on the XML file except it will give the server name and not the drive letter.
So, in summary you will have the "server" that AC is on. The folder should have full permissions for now. Let everyone share the folder and give permissions to everyone. So, just take a deep breath, grab and beer and say, OK, 2/3 of the battle is over. I have a perfectly good AC folder with a perfectly good AmazingCharts.mdf database and the two other .mdf databases. I have an xml file which points to the AmazingCharts.mdf database. Click on the AC folder and it will open. I promise you. Once it does close it and realize you are 2/3 of the way there. Just for good measure, turn off all firewalls and all antivirus programs ESPECIALLY the evil Symantec or McAfee. If McAfee, don't just turn it off, turn off its service or uninstall it. It takes over your computer.
Now open an AC program on one of your client computers. Amazing Charts will start to open and then you will get that windows at the bottom which says, Amazing Charts can't find the folder whichever. See, that is not an error message. You don't need that "message" to tell you it can't find it. You ALREADY know that. By the way, if you can't find the database, then you won't see the right path when you do the right-click trick on the login folder. At the bottom, it will ask you if you want to browse to it yourself or Let me browse to another database. Of course, you do. You click that button and it will bring you to a browsing folder. Or you may get a window which says: Amazing Charts Setup Assistant and at the bottom it will say next.
At the bottom of the window will say our old familiar AmazingCharts.xml. You must have and you must click on this file to connect to the database. Now, when you are in this window, it may very well be the computer you are on, which has an AC folder and can be confusing. On the left (in Win 7), should be a Network of computers including your "server" GRAEF.Clicking on that will take you to your folders on your "server." Click on Amazing Charts, and there will be 11 folders and the .XML file. Clicking on the XML file will connect you to AC and AC will open on your desktop.
Just make sure you consider the Database Tuner. And, it always says it is in the folder, but it never is. You have to download it.
So, forget about all those "error" messages and just make sure AC works on the "server" and then connect to it by browsing to it.
Some of this you may already have done. If so, you should be OK. But, don't worry. You really can't screw it up and as Sandeep has already said losing a connection will not lose data.