opening serial port CVI

[Truthseeker]

When I try to open a serial port, the function bug and remain stucked. No Status is returned and I need to terminate the process with ctrl + alt + supp (after few minutes). It is strange because when there is any error, a status should be returned? When I try to open the port with another application, everything is OK.

I use CVI 6.0 

[dilution]

I'm using
int OpenComConfig (int COMPort, char deviceName[], long baudRate, int parity, int dataBits, int stopBits, int inputQueueSize, int outputQueueSize)
and have a status always returned even if the port does not exists.
May helps if you show us the part of the code where it sucks.
Regards,