Last weekend the software on the server was upgraded to the latest stable Apache and PHP versions. Unfortunately Wikidot was unexpectedly unavailable for 30min because of a bug in one of the software components.
It seems that the upgrade solved at least a few problems. Most important one is the "blank alert box" when previewing or saving long pages. Hopefully you will not see this one again.
Although a lot of testing have been done before and after the upgrade there might be some not-so-obvious problems left. The fastest way to report them is to send an email to moc.todikiw|troppus#moc.todikiw|troppus.
Thanks to the open-source developers and contributors of Apache Web Server and PHP for providing their high-quality software!
regards
michal frackowiak