I had an odd thing happen - we have converted to gl v9 and have the next year open and posting, while not having closed the "current" year. I changed some entries in batches that had been provisionally posted and then provisionally posted the 2 new batches. I went to run a new provisional trial balance but I didn't get that option. So I went to financial statements and ran them, and the proper provisional numbers were there. I thought maybe you had taken out printing provisional trial balances until my boss showed me a provisional trial balance he had run just the day before.

So I thought I would provisionally post those 2 batches again since it clears the provisional posting first anyway. I didn't get that warning and it provisionally posted the batches again doubling the entries. I could now run the provisional trial balance though, but the proviosional numbers were doubled. The only difference I could think of was the time it didn't work I think I printed the provisional posting journal and cleared it. I didn't expect that to mess up the posting - is that something I shouldn't do? I'm certainly not going to do that again.
Anyway I restored from backup before the 2 postings and posted the batches without printing and clearing the journal and the reports were all correct. So I'm fine now, but I wanted to share that in case it happened to anyone else.
Also I just went to post 2 batches in the "next" year and I got the warning that provisional postings would be cleared. I only had provisional postings in the "current" year. I went ahead since I have another backup, and the provisonal postings in the "current" year seem to be unaffected by posting in the "next" year.