Thanks so much for a prompt reply, I will give it a try and report back.
Rem. I said on my desktop I5 cpu which has plenty of horsepower and memory for multitasking, that calibre still freezes up for 30-60 seconds (not lockup as the laptop does) and it effects other apps running. Example I play a lot of online poker, so all the time I'm browsing the net or reading a ebook, or watching a streaming video, at the same time I am playing online poker. I never have a problem that locks up the online poker app or the other apps that might be running. I load calibre and the news d/l starts I get freeze ups maybe two or three during the 40+ news source download.
Also something else I have noticed. On my laptop that when calibre is running, the laptop fan stays on and a lot of heat is coming from the air exhaust ports on the laptop.
It is very obvious that calibre is using up a lot of cpu and system resources during operation. I use another database program
mytreedb Pro (not a plug), I have some very large d/b files that easily load and there is very little draw on system resources. I AM NOT complaining I am simply trying to point out the difference so I can understand.
again thanks