I've finally got round to installing SR1 for Studio 2017, but am finding that Studio crashes more frequently - at least three times yesterday! - and that it appears to have had a very detrimental effect on Dragon, which is now very slow to respond in Studio and just doesn't pick up on even basic commands like Go to sleep, Wake up or Press Control Enter. It doesn't respond at all if I ask it to Select words or phrases to edit them. I can't think what else has changed as I was on holiday last week and have only noticed this since I've upgraded. I have since reverted to Studio 2017 without SR1 and everything is back to normal, so SR1 was obviously the culprit. I'm using Windows 8.5 and Dragon 12.5, but had no cause to upgrade as Dragon works perfectly. I'd be interested to hear if anyone else has had this issue as it's obviously not in my interest to upgrade to SR1 if this is the result.