If you have CorelDRAW X4 and it fails to start with an “Error 24” message read the post linked to below BEFORE June 30, 2010. It’s a very reasonable response to a problem all software vendors face.
CorelDRAW X4 error 24 – details and an offer
“Based on all the tests we have done and all the information gathered, the "Product Installation Unsuccessful Please Reinstall Error 24" message will only be displayed when you are using a serial number that was not generated / sold by Corel Corporation or our partners, and that these have an expiry date of June 1, 2010 embedded.
Software piracy is a persistent issue that affects all of us. At the same time, we understand that some of you might have been the victim of software pirates and have inadvertently purchased an unauthorized copy of CorelDRAW Graphics Suite X4. We have therefore decided to provide you with an opportunity to purchase an authorized version of CorelDRAW Graphics Suite X4 if you are affected by the “Error 24” message.”
UPDATE 2010-06-11:
First, thank you all for your help and thank you for all who decided to take advantage of the amnesty program and provide us with their proof of purchase so that we can take the appropriate action.
I wanted to provide an update and let you know that we can continue to confirm that the Error 24 error message for CorelDRAW X4 has not affected a single user who purchased an authorized version of CorelDRAW [cont]