We get this error no 61704 at runtime. Please tell me more on this.

The case is :
We have developed our own graph control in VC++ 5.0
We have multiple graph controls on the form in VB 5.0.
We are populating the graph control with lot of data.

Probably, this error is due to limit on the heap size for the VB application.
Please tell me if there is any workaround.