SQLSTATE = 22005 [Oracle][ODBC][Ora]ORA-01722: invalid number

environment:

• clients pc: windows XP sp2/sp3
• oracle 11g
• powerbuilder 9 
• connection use ODBC to oracle server

some users use windows XP have error message as below:
SQLSTATE = 22005
[Oracle][ODBC][Ora]ORA-01722: invalid number
No changes made to database.

when changes value use combo box

below step to solve at clients PC:

• please unisntall previous oracle clients at their PC,
• remove ODBC setting and environment DLL for powerbuilder
• reinstall oracle again and 
• re setting path DLL files for powerbuilder in environment variabel.