Ever since the past year on the various supernova releases the performance has turned to crap. Very slow, no multitasking performance. I have several e-mail accounts, when downloading from Gmail, my other accounts are non responsive. And the biggy I cannot select and delete multiple messages. Even a few dozen in spam folder and I get " Not Responding". The product is wrecked. I never had this much difficulty before. Please own up to the problem and fix it.