Gauges controls trigger model rebuild with Real Time Windows Target

Hi,

I am using Gauges controls to visualize the signals from the model executed in real time (Real Time Windows Target). The operating system is a 32 bit Windows Vista. The problem is that I have to rebuild the model each time before I can connect to target and start the simulation although I have not changed anything in the model. This happens even with a very basic model (an analog input block connected to a linear gauge). I have checked the checksum. Surprisingly, the checksum changes just by starting and stopping the model. However, there is no difference in checksum items. Do you have any suggestions why this happens and how to solve this problem?

Best regards, Strahinja