Hi, I think there may be a bug in EndDialog. Attached is a simple app which work fines on Windows but hangs on Linux. Follow the steps below to reproduce the problem. 1. Create the Sample2.exe from the attached project. 2. Run Sample2.exe 3. Click on Help | About menu item 4. Click on the OK button 5. App Hangs. Any clues? Regards Santosh Siddheshwar <<Sample2.zip>> ********************************************************************* Disclaimer: The information in this e-mail and any attachments is confidential / privileged. It is intended solely for the addressee or addressees. If you are not the addressee indicated in this message, you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer does not consent to Internet email for messages of this kind. *********************************************************************