My PC (running XP Home) suddenly won't allow me to upload pics/files to websites via a web browser (eg, photos to Photobucket or Imageshack) using forms. I've tried various types of file and none of them work, regardless of format or the site I'm trying to upload them to.
Strange thing is it worked fine until this morning and I haven't added any new software.
I've checked another PC on my home network and the same problem isn't occurring, so it's an issue with this specific PC rather than my net connection.
I've tried both IE and Firefox - the same problem with both browsers.
I've also tried uploading to a site with my firewall switched off - same problem
Any ideas as to what's wrong and how I can fix it?