Maybe you can try v3.6 if 3.7 is not working? You can download it here:

Here's the URLs for Desktop 3.6.

Win 7/8 64 bit:http://s3.amazonaws.com/downloads-makerbot-com/makerware/MakerBot_Bundle_BETA_3.6.0.76_x64_Install.exe

Win 7/8 32 bit: http://s3.amazonaws.com/downloads-ma...86_Install.exe

Windows 8.1 64bit:http://s3.amazonaws.com/downloads-makerbot-com/makerware/MakerBot_Bundle_BETA_3.6.0.78_8.1_x64_Install.exe

Windows 8.1 32bit:http://s3.amazonaws.com/downloads-makerbot-com/makerware/MakerBot_Bundle_BETA_3.6.0.68_8.1_x86_Install.exe