Thank you!
I have reset the ACL to the entire Softrak folder - still the same problem <argh>...
I ran the test on the Ledger\Samdata and the report ran w/o a problem using the problematic profile.
Since the ACL is correct, the reports works on the Samdata I then believe that this might be a hung file open operation or some kind of lock like you refer to.
I will reboot the server tonight and post back up once I know the results..
Again / always - thank you for your support!
Cheers, JK