Oh I think I get what you mean. I have a similar Dell laptop and it sits there with the thing spinning for a while (don't think its quit a minute though) unless I let it sit at the log in screen for about 30secs. But even then its still there. My moms computer with a 2.26 GHz i3 processor (2 cores with HT, so it runs as if its 4) and 4gigs 1066MHz DDR3 ram and it still sits at it for a few seconds. The pause I mentioned before was the spiny thing (what the heck is it called) will pause for a second or two on both before the Desktop appears. If if you only have one program starting at start-up, there are still several services and drivers
starting up. I think its pretty normal but running a disk defrag will help. Also, if you have a multicore processor, did you set your computer to use all cores while booting. By default it only uses one.