When completing code using ReSharper's CompleteCodeBasic or CompleteCodeSmart, the caret jumps to the end of the current line. This happens also in case of a partial completion of a common prefix, in this case the suggestions window goes empty, but, when the caret is returned to the proper location by either kbd or mouse, the suggestions re-appear. When a suggestion is selected, the caret again jumps to the end. PS I've just discovered that this happens in ?no horizontal scrolling? mode only, MainMenu -> Edit -> Advanced -> Word Wrap. PPS This applies to more than just completion — any activity that replaces a text region in a line that contains the caret causes the latter to jump to the end of line.