Failing to connect to Oracle from Crystal Reports

We have a client attempting to connect to 10g using crystal reports. They are getting ora-08001 as an error reported to them. Any ideas what could be causing this?

I don't know Crystal Reports and what it sends to and requests from the database, but that's the formal description of this error:
Error: ORA 8001
Text: maximum number of sequences per session exceeded
Cause: An operation requested a resource that was unavailable.
The maximum number of user sequences per session is specified by the
initialization parameter DC_SEQUENCES.
When this maximum is reached, no more requests are processed.
Action: Try the operation again in a few minutes.
If this error occurs often, shut down Oracle, increase the
DC_SEQUENCES parameter in the initialization parameter file, and
restart Oracle.

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        <add key="CrystalImageCleaner-AutoStart" value="true" />
        <add key="CrystalImageCleaner-Sleep" value="60000" />
        <add key="CrystalImageCleaner-Age" value="120000" />
      </appSettings>
      <system.web>
        <httpHandlers>
          <add path="CrystalImageHandler.aspx" verb="GET" type="CrystalDecisions.Web.CrystalImageHandler, CrystalDecisions.Web, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
        </httpHandlers>
        <compilation debug="false">
          <assemblies>
            <add assembly="CrystalDecisions.Data.AdoDotNetInterop, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692FBEA5521E1304" />
            <add assembly="CrystalDecisions.Shared, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
            <add assembly="CrystalDecisions.ReportAppServer.ClientDoc, Version=12.0.1100.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
            <add assembly="CrystalDecisions.Web, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
            <add assembly="CrystalDecisions.Enterprise.InfoStore, Version=12.0.1100.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
            <add assembly="CrystalDecisions.Enterprise.Framework, Version=12.0.1100.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
            <add assembly="CrystalDecisions.ReportSource, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
            <add assembly="CrystalDecisions.CrystalReports.Engine, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" />
          </assemblies>
      </system.web>
      <system.webServer>
         <handlers>
             <add name="CrystalImageHandler.aspx_GET" verb="GET" path="CrystalImageHandler.aspx" type="CrystalDecisions.Web.CrystalImageHandler, CrystalDecisions.Web, Version=12.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304" preCondition="integratedMode" />
         </handlers>
      </system.webServer>
    </configuration>
    Sample Code:
    Report = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
    Report.Load(Server.MapPath(strReportPath));
    Report.SetDataSource(dsReport);
    Creportviewer.ReportSource = Report;
    For exporting the report to PDF
    string Filename = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.InternetCache).ToString(), Guid.NewGuid().ToString() + ".pdf");
    Report.ExportToDisk(ExportFormatType.PortableDocFormat, Filename);
    Clean Up Code: (Page_UnLoad event)
    if (Report != null)
         Report.Close();
         Report.Dispose();
    Creportviewer.ReportSource = null;
    Creportviewer.Dispose();
    dsReport = null;
    GC.Collect();
    GC.WaitForPendingFinalizers();
    Can someone help me resolve the issue.

    The .rpt file size is 14MB with the Data Save option enabled, 12MB without Data Save.  Presumably the 12MB file size is because of the 24bit PNG we have as our background.
    The Designer executes the report in less than a second and we can scroll through all pages and see the image fields perfectly.
    When we Export to PDF, the Designer takes a long time, eventually gets to the 77%, the 7th record and returns "Export report failed" followed by "Memory full".  If we export only page 1 of the 3 pages, it also returns a Memory full error.  However, when the same report is run with only 1 page, that page exports to PDF but with a ridiculously large size and export time.
    The machine has 2GB of physical memory with an 8GB pagefile with Windows 2003 (latest everything).  The process runs up to about 1GB before reporting the memory full error.
    We've also tried a variety of other suggestions posted in the other thread with no success.
    We're happy to provide the RPT file to the Report Team to diagnose the problem.  Ultimately, we need to be able to produce a 15 page report with approximately 45 images.
    Our preferred scenario is fixing problem 2.  The CR Designer seems quite capable of rendering our report and printing it to our third party PDF printer in a timely manner with small size.  However, the API reports memory full.
    The API resides in a dedicated reporting web service with NO other code except for loading the report, setting parameters and printing.  When executing, it uses up to about 1.1GB before reporting the error.
    Are there any other suggestions for fixing what we have?  Are there known problems with large images in reports?  Do we need to lodge a formal support request?
    Regards,  Grant.
    PS.  Grr and my message formatting is lost when I edited this message!!!
    There is a 1500 character limit and then all formatting is removed to save space. Break you posts into separate entries.
    Edited by: grantph on Sep 30, 2009 2:49 AM

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