Hi, Perform the following steps. If you continue to have problems, call our Istanbul office and we will try to identify the problem by connecting to your computer with remote access. - Make sure the ideCAD installation is OK, you can try uninstalling and reinstalling the program. - Make Windows updates - Update Internet Explorer to the latest version - If you are using antivirus adblocker style security software, deactivate them and try again. - If there are add-ons installed in Internet Explorer, disable the add-ons.