I have no idea why this is happening to my computer, but here goes:
When I use internet explorer, about 40% of the time pages do not load. I have to constantly reload the pages. When I try to attach and send large files using Yahoo Mail through a web interface, although this has worked fine in the past, now it doesn't work. I can still use IE but it takes a long time to constantly hit refresh to get pages to load, and I can't send upload large files.
Do I have a virus? Others in my office using the same internet connection don't appear to have this problem.
I have no virus checking software on my machine, but I have many installed programs and dread the thought of reformatting my hard drive...