The impossibility to open your Hallmark application might be given by a conflict with certain Microsoft updates. You can try the following steps. First of all, close any open program. After that, press Start, go to the Run section, type msconfig and hit the OK button. From the General tab of the newly open dialogue box, select the Diagnostic Startup - load basic devices and services only and press Apply and OK. When prompted, select the Restart now option. If the problem isn't solved after restarting your workstation, you can re-enable the initial settings from the General tab, by selecting the Normal Startup. Go to this link http://www.hallmarksoftware.com/softCityPop.html for technical support.