Hi allHaving had several issues with earlier versions (mainly - simulator trying to launch for about 5 minutes before failing, xcode suddenly quitting once or twice an hour, playgrounds taking 5 minutes to launch plus many others) I hoped that 9.3 would be better. Ha! Now it is far worseWhen I select storyboard it locks upWhen trying to quit it locks up.Simulator doesn't launch at all With these problems the program is totally unuseable.I have been learning to program for the last 8 months but a HUGE amount of my time has been wasted battling this program. I have tried all the suggested fixes, sent in a bug report, but all to no avail.From what I have read there are a number of people like me that have continual problems, but I know people who have no or very few problems. This is especially noticeable when I watch u-tubes of others using X code and how nicely it seems to work for them. This would seem to indicate a problem with my computer. It is a 2 year old iMac, 8 GB memory. I have very