I have exactl the same problem. Windows 7 with FTB V5 maps page is blank.
I do have a little bit of extra information. I'm very new to FTB and only downloaded the program for the first time yesterday so I have only ever had V5. When I had loaded about 4 people in my tree I clicked the map function and it worked perfectly showing the locations of each person. After I had about 10 people I tried the map function again but got the blank screen.
When trying to install FTB on a Windows 7 64bit machine I get the following error - "Installation cannot continue, download failed with error 112". It has already prompted me for the language and I selected "Enligh" and it already asked if it should do a complete and custom installation and I have tried both selections.
Anyone else having issue getting the software installed on Win7? I've seen plenty about crashes but it seems most people have at least been able to install the software.
First of all, thanks FTB is great program and since I download the ver2.0 I already work to complete my ancestors heritage.
Now, while connect to Internet, I am manually checking the new update and found ver4.0 is avalaible and I decide to update it and screen show estimate 24MB files to download. But my internet connection is very very slow and broken,so I cancell it.
Now I am in other comp which is have faster good connection. I am opening your DOWNLOAD page and download for ver4.0, but the family_tree_builder.exe file only about 543kb application file... It's confuse me because by automatic at least 24MB files is needed, but manually single file is less than 1MB ?
Can I just copy this 543kb file to my computer running with older version of FTB to maually get newer FTB version without connect to intermet. Or maybe you can advice how I can update it ? Thanks so much !