Insufficient system resources exist to complete the requeste

[allen05]

Came in this AM to check backup status, found multiple (60+ , one for each database?) messages as follows:

HyperBac Status Manager
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Insufficient system resources exist to complete the requested service
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I manually restored a database at random and it appears OK, plus all of the backups appear to have run correctly (files are located on the backup disk). The backup disk has plenty of room (backups are using less than 34% of total space available).

Are there any log file(s) I can review to determine the cause of the error? I am suspecting RAM right now (8G total on a 32-bit Windows 2003 server), with Commit Charge Peak that exceeds the physical memory total.

We currently have Hyperbak 5.4.1.5 installed.