The "less" pager (version 436, the latest version - binary build from http://www.greenwoodsoftware.com/less/) locks up Take Command for me (Version 11.00.48). I'm running on Windows 7 32 bit. It's easy to demonstrate, with less in the path, and a text file "a" in the current directory, the command "less a" causes Take Command to lock up (specifically, the tab locks up, I can close that tab if I have multiple tabs). As less uses a separate screen buffer for its display, I suspect that's related to the problem. Running less in a TCC window works fine. I get the same behaviour whether my Take Command tab is running TCC or CMD, so it looks like a Take Command issue rather than a TCC one. I know I could use list, but (a) I like the features in less, and (b) my muscle memory is programmed to type "less", so I'd mistakenly use it even if I didn't want to... Paul.