Make sure the registry entry matches the mapping for this workstaion in addtion to paths found in the rs_run.ini file living locally on the workstation.

Check Registry:
HKEY_LOCAL_MACHINE | SOFTWARE | BORLAND |
ReportSmith
3.00

The path for 3.00: Runtime Directory t:\tws\rs_run32

Check local rs_run.ini file for driving letter in paths to match path for TWS
This file can be found in the root:\Windows directory