We are using DBA Classic 2004.1 and on 2/23/08 installed the 12/15/07 update.  We tried to post our sales from 2/22/08 and it will bring them up on the report in SO-G but when we hit yes to post now, the screen blinks and then goes back to the sales menu.  I have searched the forum and cannot find any issues related to this 12/15 update but that is the only thing that we have done since 2/22 when we successfully posted the previous days sales.  Any ideas please?
 

Thanks but we have already tried with no luck.  Also tried posting 1 at a time, no luck here either.  It will run the COGS and commission reports but when time to post it immedietely goes back to sales menu.

I looked in database but could not find the unposted invoice file, what is file name?  All I could find was the last sales we had posted which was 2/21.  
 
The only other thing I can think of to do is going to my backup on 2/22 before update was installed, I am just afraid of loosing all data entered since then.  Any other thoughts on a fix?