This is a non-critical issue, but it would be nice if there was a solution for it. I have the TGS gauge installed in all the aircraft I usually fly, and it mostly works but seems to fail at random times, meaning it goes blank. I still get the voice prompts, and I can use the heading bug if I have to, but I like the gauge and it would be nice if there was some way I could "wake it up" those times that it blanks out. Anyone else run into this and and have a trick that works?