Are you on a netbook or otherwise slow computer?

I'll see what I can do to add some breaks to the page rendering loop. I get the impression that the Firefox version needs a bit of work.

Nope, a year old ThinkPad Edge. Hardware performance is certainly not an issue. I get this message in the log right after the page is loaded.

Should be fixed now.

It's not, I'm afraid. Getting the exact same error message in the log. One difference is that now it requires only one Ctrl/- and a reload to start working.

Thanks can you email me at support@magicscroll.net. I can't reproduce the error so I'll need help testing the fix.