multiple-unit display probs

[falco]

Just upgraded my PC to Win 7 and after one or two false starts managed to get CS up and running without too much difficulty. One problem persists however. When I double left-click on any hex that contains multiple units, only the topmost unit is displayed in the upper-right corner pop-up. Anybody know what might be the problem here? Cant for the life of me seem to figure it out!