Your issue has already been forwarded to our engineering department. This issue is not happening on all types of PCs. Only certain PC configurations run into this problem. They are investigating the issue and have not been able to reproduce the error so far to ascertain the root cause.
In the meanwhile, if you wish we can refund your purchase. You can purchase RealPlayer again when the issue is resolved. Please let us know.
You will receive an email as soon as this has been fixed.