You may be aware that Windows 8 recently launched into the wild with Internet Explorer 10 (IE10), it has since come to my attention that Galleria slideshows do not run properly in IE10.
We utilize the Galleria slideshow script as an option for the TTG CE2 Pages "Home" page and also in TTG CE2 Stage. It's been a popular choice amongst users, especially for Home page slideshow presentations, and we originally chose the script for its excellent performance in mobile browsers and on touch screens.
I have searched the Web for similar reports of incompatibility with IE10 and such reports are not difficult to find; Galleria users are reporting trouble on all fronts, not just TTG users, but Galleria users in general.
Last night I also went to see The Hobbit: An Unexpected Journey (wonderful! Go see it!) with some friends, one of whom is a major gadget-head. As luck would have it, he brought along his new Nokia Windows 8 phone to show me -- this guy has Android, iOS and now Windows 8 devices on-hand at all times -- and so I was able to hit TTG pages with IE10. Everything seemed to work perfectly, except the Galleria slideshows.
The Galleria script was last updated to version 1.2.8 in September. While TTG engines are not yet using the latest version, reports I've seen indicate that the problem occurs even in 1.2.8. Therefore, I am not likely to update to the newest version at this time, as it would involve lots of testing on my part and would apparently not resolve the major issue at hand.
I have not yet seen any acknowledgement of the problem from the Galleria authors, and their intent to fix the issue is, at this time, unclear. I will continue to monitor their news feed in hopes of an update that fixes this issue.
In the meantime, however, I recommend users against using the Galleria slideshow for your Home page or galleries. If you wish to run a slideshow on your Home page, use the Photoswipe slideshow option instead. If you are already running a Galleria slideshow on your Home page, then you may do well to replace it with a Photoswipe slideshow.
I am sorry for this inconvenience, but Galleria's incompatibility with IE10 is not something that I or you could have anticipated. Nor Galleria's authors, unless they had bothered to test their script with a prerelease build of IE10, which I guess they didn't do. The script worked perfectly in IE9, and it's not unreasonable to expect that Microsoft wouldn't break things that were already working. Then again, this is Microsoft we're talking about ...
So that's the news. I'll update you if I hear anything new.