closing

[darla5763]

Hi,
I'm new here so, Hi everyone!
I really need some help. You know how this runs in the background if your not using it and shrinks down to the bottom bar on the left? Ok. So, I have tried closing it altogether when not in use because I have an older computer and don't want resources wasted if they don't have to be. When I do this, a minute later it pops up again, full size! I've done this over and over and it keeps poping up, very irritating. So then I go to tools and options thinking maybe I can change a setting to close it down. Well, something opens for a split second and closes again. So fast I can't even see what it is. So, apparently I cannot even access the tools! Again, irritating. Can someone please shed some light on these problems?? Is there a way to shut it down when not in use? And, can the tools/options be accessed? Am I doing something wrong, or what?
In case you need to know, I'm running Windows XP on an older computer, pentium 4, 2 GHz, 768 Ram and 16 GB of space left. Don't laugh, I can't afford a new one right now. Running Limewire 4.16.7
Thanks so much for any help you can offer.
Darla