Running out of memory using mount_smb

QNX novice!

Inherited a QNX 4.24 machine to maintain and need to get it to see a couple of shares on XP computers.

Using mount_smb I can hook up one of the XP boxes no problem, but I get a “Mount failed: Not enough memory” error when trying the second XP box - even with the first XP box not connected.

Host QNX box has 64Mb system memory that ‘sin info’ reports correctly with most of it free.

The XP boxes are set-up identically so I don’t believe there is a problem there and the QNX box can ping no problem.

Any help would be greatly received!