Thanks for the explanation. So my hunch that the symptom was related to page loading times was correct after all.

I just tried the update, it seems to work OK but I only had a short list of items to test. I'll stress it more in the coming days.

A side question : does GRead take notice if a proxy is configured in the currently active connection ? I have one on a Wifi link at work, web sites & such are OK but GRead just sits there spinning...