Image upload problem

I am having trouble uploading images (pictures) to websites. I have tried on Facebook, Flicr and the site for Wal-Mart photos. They all have the same result, either a timeout or an uploaded failed. I am running a D-link Di-704up router on my DSL highspeed ethernet modem and I am using windows XP home edtion operating system. I check with tech suppot at d-link and they told me to open ports 20 & 21 but that doesn't help. There other suggestion was to use DMZ, but I don't want to do that for obvios reasons. Is ther any other port I should have opr to fix this. Any help would be appreciate

Thanks

Terry

 

Sounds more like the files are to big.. if your timing out & failing all attempts.
Findout what the file size limits are.

 

No that is not tjhe the prob, because if I enable DMZ mode on this pc or if I connect direct to the router it woks fine. There has to be something the router is blocking that is the prob, but thanks for the suggestion