Document not getting posted

HI all,

I am trying to post a material document using tcode MIGO, I entered the PO number and then hit enter...then I was asked to check the small printer sign on the screen and make the choice equal to "collective slip" and then when I tried to save the document ...it gives me a message that the document has been posted and will give me a document number too but when hit back button to get out of the transaction it gives me this message "Express document "Update was terminated" received from author " zuser" and then when I went to Me23n to look out if the document is really posted or not it didn't show me the doc number under the tab "Purchase Order History". Now the other thing is if I am selecting the document to get printed in T-code Migo and just save the doc it will post the doc and I could also see it under the PO history tab in Me23n. So it's something related to printing problem...

can you please help me on this....we are having this issue only in our QA box and not the development box..it's working fine in development box..

Thanks,

Rajeev Gupta