woodie 0 Newbie Poster

Can anyone please help with this problem. I have sold and bought many items on ebay in the last 18 months. However, ebay is not allowing me to sell anything at present. I click sell, and get the page asking how I want to sell, auction or fixed price. When I click on auction, the page closes and immediately shuts down my internet connection. I have contacted ebay who suggested removing some cookie files, but no joy. I downloaded some spyware software, but still no joy. I am flumoxed!!. I have no problems buying on ebay at present, or using any other features of the site. I even downloaded netscape and tried using that is my net browser rather than int. explorer, but exactly the same thing happens! I am running windows xp with service pack 2.
Please help if you can, thanks for reading, woodie. :D