I was using MSN messenger last night, when all of a sudden my computer started getting really jumpy. For instance, when I type the text doesn't appear smoothly on my screen but there are short delays and then batches of text will appear.
I tried rebooting, and at first the problem seems to have gone away but then if I go to certain websites then the font of them is bigger than normal (eg. google, or any Microsoft site...using Messenger also causes the problems), and my computer again runs slowly and any typing again only appears in batches. Also, any website I then link to directly also appears in large font, though it's virtually impossible for me to load a web page then and I have to close IE. It only happens in that windwo though. For instance, I currently have one window open running like this, but this page is typig fine. I have rebooted a few times since, have run ad-aware and Spybot - Search & Destroy, and both have come up clean. I've also deleted all cookies and temp internet files, but nothing seems to be working.
Has anyone any idea what may have happened? I'm pretty sure I didn't change any settings last night as I was literally just chatting on MSN. Also, I'm fairly computer illiterate, so if you could suggest things in easy speak I'd be very grateful!!