[mhlakhani]

From what I recall, this is because the 'More' link is implemented using closures, which get garbage collected after a while. So if you take too long and a GC has happened in the meanwhile, the link will be broken.

[nxn]

Seriously? Having 'paging' tied to the GC in this way, or any way at all for that matter, does not sound like a good idea to me.