TPrai Helix

I had no problem running second life for the past year, until today. Now suddenly, on both my mac and my dell xps15 I cannot open a second life viewer for more than 5 minutes without a problem. I am not sure what to do about it either. I updated the intel and nvidea video drivers on my dell xps 15 and ran a diagnostic on my computer only to see that all is working well. I must admit to being totally stumped. Any suggestions??