hey there, just wondering if i hav a trojan horse or a virus. lately, i've noticed my mbp pops up things that i didn't click on - i.e. Finder app ... or it suddenly closes things that i didn't exit out of... i.e. there were a few times, when i was uploading some pictures on my blog and the uploading pop-up window that allows me to search for my pictures in my mbp, it suddenly closed... anyone hav any idea what could it possibly be?? thanks in advance!