Recently I've been having a particularly annoying problem with my Windows XP computer. Almost every time I perform a new action [i.e. open a document or webpage] the screen "freezes" for a about 10 seconds. I can still move the cursor, but can't click on anything. What's more, if I type something while the screen is frozen, it will show up once everything is back to normal. Another interesting thing I've noticed - on the internet [Firefox], I can sometimes get around this by moving from page to page rather quickly, not staying on one page for more than a few seconds. However, this only lasts for 3 or 4 pages, before it's stuck again. The whole thing is understandably getting very annoying. Ran a MalwareBytes full scan which came up clean, HijackThis didn't turn up anything I saw as out of the ordinary, I've been using Comodo... Quite open to suggestions!