user-specific explan-plan problem (DBvis 8.0.12)

Using DBVis 8.0.12 on Win7 x64 with DB2 v9.7 remote on Linux x64. Getting "Explain plan processed" message with no explain output and no errors for a specific user, but only with DBVis. The debug window of dbvis shows no errors either for dbvis or jdbc. DBVis is configured to use SYSTOOLS as the schema for the explain tables, and the tables exist in the database. With the same login credentials on same machine,I can use explain-plan from IBM-data-studio on same database, and also db2expln on the command line, so some tools work with explain-plan with these credentials. So this suggests that there might be a problem on the workstation side, not at the server. Also, if I use different credentials in DBVis connecting to same database, the explain-plan works fine. So there's some user-specific problem, but since I cannot see any errors in the DBvis debug window (or jdbc trace), I'm a bit stuck. Any suggestions for troubleshooting this?

sent email to support , as requested.

Thanks to Roger at dbvis support - Resolved by dropping the explain tables that were in the schema of the authid, forcing db2 to use the SYSTOOLS schema explain tables instead to store the access plans. This allowed dbvis to correctly display the access plan. I consider this issue resolved.