Image posting problem

I suddenly find that I can't post images on the forum. Some of my settings seem to have changed. This problem applies to photos as well as Smilies and embedded YouTube videos.
Do you know if the problem is likely to be at my (PC) end or have I changed my IA settings on here? Certainly some settings had changed in Board Preferences and I have changed them back to the default setting but I can't find any default settings for image URL postings.
Does any of this make sense? :( PS All my smilies come out like this.. :( :( :( and my images like this ..
[IMG]http://i101.photobucket.com/albums/m65/ibw123/101%20Sqn%20flightline/35641e66-1.jpg[/IMG]
Ian
Do you know if the problem is likely to be at my (PC) end or have I changed my IA settings on here? Certainly some settings had changed in Board Preferences and I have changed them back to the default setting but I can't find any default settings for image URL postings.
Does any of this make sense? :( PS All my smilies come out like this.. :( :( :( and my images like this ..
[IMG]http://i101.photobucket.com/albums/m65/ibw123/101%20Sqn%20flightline/35641e66-1.jpg[/IMG]
Ian