pre-fetch on FTP works not always

[MypSE]

Sometimes when I open a table pre-fetch works fine and HUD appears. But sometimes only one HUD panel appears(hero panel) with 0 hands and on the wrong place.
I use WinXP and ScreenScrape method, because PrintWindow method uses all CPU and HUD doesn't appear at all.

[netsrak]

At the moment we have no workaround for this as the prefetch uses the screenscrape and this is sometimes unreliable. We are working on a different solution.