I have random layout issues in IE10, but the text editor works fine if I click on the < box in the top right to expand the menu.
Just tried RT with IE10 Compatibility View enabled. Fixed the layout issues, but broke the text editor just as in your screen shot. Looks like you may need to run it with Compatibility View disabled, and live with the minor layout issues. -- RT training in Amsterdam, March 20-21: http://bestpractical.com/services/training.html Help improve RT by taking our user survey: https://www.surveymonkey.com/s/N23JW9T
