Possibly it's just my browser. But I have a practically brand-new Dell computer with Vista Home Premium OS plus all the required updates, an excellent anti-malware program with all required updates. I have 3 GB of RAM and more than 300 GB of HD space. So I somehow don't think it's my machine.
It's probably not you computer, but your ISP could be experiencing technical difficulties. I haven't had any problems accessing this site.