We recently upgraded to Recievables 9.0B  We are running into the same error message whenever anyone uses the F6 key.  I have tried searching by Report Group, Customer Name, and Customer Phone Number.  All 3 searches return the same error:
"Internal Error: field (211) of (@R90ACT9) is not a boolean field"
Any ideas on what may be going on?  Thanks very much.
Barb