Ok here's the basic computer info:
3.06GHz Pentium 4 processor
448 MB of RAM (most of which is used up regularly, usually only have about 90 free)
60 GB Hard drive (only 2.5 GB left)

The problem happened a few months ago but it kinda worked itself out and hasn't bothered me for a couple months, but now it's being very weird and a lot of things seem be be going wrong. I'm not a computer genius so I can't really explain everything, but there seems to be something messing around with my computer. I'm updating my drivers at the moment so hopefully that will help. Just for my knowledge, what does updating the drivers actually do?