I have a server Windows 2003 with an Sybase SQL anywhere 7.0

My clients are in Windows XP and i have no problem with my program for to connect the ODBC.

I must install my news computers on Windows 7 32 bits, anywhere 7.0 install with no error and i have the connector ODBC with the same configuration that in XP but i have always the error -100 tell me not possible to connect on the server with the ODBC.
I have no problem on teh network and all other appliaction work well with Windows 7.

Someone have a problem ODBC with version SQL Anywhere and Windows 7 ?

Thx a lot.