I don't use the app any more, only via the website now, but I've not been able to use ebay on any of my computers for over a month now (both Windows and Mac). I can no longer scroll listing photos, enlarge listing photos, buy it now, add to lists etc. As of a few days ago, I can no longer open messages either. This all happened last year too, and ebay took a long time to acknowledge that the issue was with an ebay update that was incompatible with operating systems/browsers that were quite up to date. However, ebay eventually acknowledged and fixed the issue. On this occasion however, no-one yet seems to be doing anything about it, or even acknowledging the issue at ebay. It's incredibly frustrating.