Computer help

[cornerofmadness]

I'm mostly looking at Penguin Boy and DL....I'm suddenly have strangeness with my computer which may be two unrelated things and one I fear might be viral that my system can't find.

Lately since I've switched back to dial - up whenever I'm working on line, even just answering emails, I can hear the computer tower churning like the hard drive is thinking hard about doing something and I don't recall that happening before (could be I wasn't paying it any mind) and I'm not sure why it would be drawing from the hard drive.

secondly and this could be just a mouse problem, but very suddenly this week, left click doesn't really want to work. It takes many tries. God forbid I want to highlight something. It'll automatically cut it if I'm in Word and if I'm on line say answering an LJ post or my email it'll just kick me back a few spaces after hesitating like it's stuck. I'm no where near the back button and suddenly I'm back three pages. I try to X-out one thing and the whole system goes down lke the button engaged several times (this is on line and not on line)

Suggestions?

Oh and since I'm a moron...I can't figure out how to label my nice new icon so I can tell everyone they can go look at the lovely stuff  at Due Uomini e una Gatta I managed to say so in the key notes but how do I actually honestly credit an icon?